Proposed Splits/Lumps

AL	Accepted lump
AS	Accepted split
ENG	English name change
EXT	Extinct taxon
NEW	Newly described taxon
PHY	Phylogenetic issue
PL	Proposed lump
PS	Proposed split
SEQ	Modification in linear sequence
SSP	Subspecies issue
TAX	Taxonomic or nomenclatural issue

This page provides a working list of Proposed Splits/Lumps (PS/PL) and Newly Described Species (NEW) that are candidates for addition to or deletion from the IOC World List. Accepted Splits (AS, green) will be finalized and added to the World List with updates twice yearly. Others (grey) will be retained as active candidates or deleted with the option of future reconsideration. Decisions through 2015 are available on a separate page.

Proposed Splits/Lumps IOC Version 15.1 (DRAFT)

Number	English Name	Scientific Name	Parent	Parent (sci)	Proposal
AL 15.1	Northern Mouse-colored Tyrannulet	Nesotriccus incomtus	(Southern) Mouse-colored Tyrannulet	Nesotriccus murinus	Re-lump prematurely split Nesotriccus incomtus with Nesotriccus murinus (SACC 956). Restore English name of re-lumped species Nesotriccus murinus to Mouse-colored Tyrannulet from Southern Mouse-colored Tyrannulet with the re-lumping of Northern Mouse-colored Tyrannulet N. incomtus.
AS 15.1	Samoan Myzomela	Myzomela nigriventris	Cardinal Myzomela	Myzomela cardinalis	Samoan Myzomela M. nigriventris is split from Cardinal Myzomela M. cardinalis based on significant vocal differences and marked differences in female plumage (Pratt & Mittermeier 2016; WGAC 974).
AL 15.1	Athi Short-toed Lark	Alaudala athensis	Somali Short-toed Lark	Alaudala somalica	Athi Short-toed Lark Alaudala athensis is lumped with Somali Short-toed Lark Alaudala somalica based on the lack of data in support of a split and following virtually all other relevant authorities (e.g. Zimmerman et al. 1996; del Hoyo & Collar 2016; WGAC 219)
AL 15.1	Placid Greenbul	Phyllastrephus placidus	Cabanis's Greenbul	Phyllastrephus cabanisi	Placid Greenbul Phyllastrephus placidus is lumped with Cabanis's Greenbul Phyllastrephus cabanisi based on the lack of significant vocal, behavioral, ecological or molecular differences (Zimmerman et al. 1996; Johansson et al. 2007; del Hoyo & Collar 2016; Stevenson & Fanshawe 2020; WGAC 1016).
AL 15.1	Black-faced Prinia	Prinia melanops	Banded Prinia	Prinia bairdii	Black-faced Prinia Prinia melanops (including obscura) is lumped with Banded Prinia Prinia bairdii based on similarities in plumage and hybridization between bairdii and obscura (Zimmerman et al. 1996; del Hoyo & Collar 2016; Stevenson & Fanshawe 2020; WGAC 485).
AL 15.1	Rubeho Warbler	Scepomycter rubehoensis	Winifred's Warbler	Scepomycter winifredae	Rubeho Warbler Scepomycter rubehoensis is lumped with Winifred's Warbler S. winifredae due to minimal morphological differences, borderline genetic differentiation and similar vocalizations (del Hoyo & Collar 2016; Stevenson & Fanshawe 2020; WGAC 477).
AL 15.1	Miombo Blue-eared Starling	Lamprotornis elisabeth	Lesser Blue-eared Starling	Lamprotornis chloropterus	Miombo Blue-eared Starling Lamprotornis elisabeth is lumped with Lesser Blue-eared Starling L. chloropterus based on identical adult plumage, identical contact calls, and continuous distribution of the species through woodlands west of Lake Victoria (Zimmerman et al. 1996; Feare & Craig 1999; Dowsett-Lemaire & Dowsett 2014; WGAC 141).
AS 15.1	Amaui	Myadestes woahensis	Olomao	Myadestes lanaiensis	Extinct Amaui Myadestes woahensis is split from Olomao Myadestes lanaiensis (Pyle & Pyle 2017; NACC 1985; WGAC 64).
AL 15.1	White-crowned Cliff Chat	Thamnolaea coronata	Mocking Cliff Chat	Thamnolaea cinnamomeiventris	White-crowned Cliff Chat Thamnolaea coronata (including kordofanensisis) is lumped with Mocking Cliff Chat T. cinnamomeiventris following most recent authorities until the taxonomy is better resolved. White-crowned and black-crowned males are syntopic in several localities suggesting polymorphism rather than distinct species status (Borrow & Demey 2001; Dickinson & Christidis 2014; Clement & Rose 2015; del Hoyo & Collar 2016; HBW/BirdLife).
AL 15.1	Hofmann's Sunbird	Cinnyris hofmanni	Shelley's Sunbird	Cinnyris shelleyi	Hofmann's Sunbird Cinnyris hofmanni is relumped with Shelley's Sunbird C. shelleyi from which it was formerly split based on Irwin (2005). But morphological differences are relatively small and are more consistent with subspecies distinction (del Hoyo & Collar 2016; HBW/BirdLIfe; Stevenson & Fanshawe 2020; WGAC 1007).
AS 15.1	Tboli Sunbird	Aethopyga tibolii	Apo Sunbird	Aethopyga boltoni	Tboli Sunbird Aethopyga tibolii is split from Apo Sunbird Aethopyga boltoni based on differences in plumage and vocalizations supported by mtDNa divergence (Hosner et al. 2013; Allen 2020; WGAC 862).
AL 15.1	African Crimson-winged Finch	Rhodopechys alienus	(Asian) Crimson-winged Finch	Rhodopechys sanguineus	Re-lump African Crimson-winged Finch Rhodopechys alienus with Asian Crimson-winged Finch Rhodopechys sanguineus. Insufficient vocal and genetic data available to support the original split despite modest morphological differences and widely allopatric ranges (Dickinson & Christidis 2014; WGAC 1103. Contra Shirihai & Svensson 2018).

Proposed Splits/Lumps IOC Version 14.2

Number	English Name	Scientific Name	Parent	Parent (sci)	Proposal
NEW 14.2	Timor Nightjar	Caprimulgus ritae			Timor Nightjar is a newly described species within the C. macrurus complex that differs from its closest relatives in genetics, morphology, and vocalizations (King, BF et al. 2024).
AS 14.2	Karimui Owlet-nightjar	Aegotheles terborghi	Barred Owlet-nightjar	Aegotheles bennettii	Karimui Owlet-nightjar Aegotheles terborghi was previously treated as a subspecies of A. bennettii to which it was provisionally assigned based on morphological similarities (Beehler & Pratt 2016). However, mtDNA analysis places it sister to A. affinis rather than within the A. bennettii clade (Dumbacher et al.. 2003). Further, A. terborghi is a montane from unlike other taxa within A. bennettii. Treat as a distinct species. Long known only from the type specimen but recently rediscovered (Lagerqvist et al. 2017).
AL 14.2	Sulawesi Swiftlet, Seram Swiftlet	Aerodramus sororum, Aerodramus ceramensis	Halmahera (Moluccan) Swiftlet	Aerodramus infuscatus	Aerodramus sororum and A. ceramensis are re-lumped with A. infuscatus (Dickinson & Remsen 2013; del Hoyo & Collar 2014; HBW/BirdLife). The original split was premature, and the three forms show only shallow genetic divergence (WGAC 948)
AL 14.2	Germain's Swiftlet	Aerodramus germani	Edible-nest Swiftlet	Aerodramus fuciphagus	Germain's Swiftlet Aerodramus germani (including amechanus) is lumped with Edible-nest Swiftlet A. fuciphagus. Plumage characteristics traditionally used to separate these two "species" are clinal and misleading (Dickinson & Remsen 2013; del Hoyo & Collar 2014; HBW/BLI. See Cranbrook et al. 2013).
AS 14.2	Olive-capped Coua	Coua olivaceiceps	Red-capped Coua	Coua ruficeps	Olive-capped Coua Coua olivaceiceps is split from Red-capped Coua C. ruficeps based on differences in plumage and vocalizations (del Hoyo & Collar 2014; HBW/BirdLife; Dowsett-Lemaire 2004).
AS 14.2	Mentawai Malkoha	Phaenicophaeus oeneicaudus	Chestnut-breasted Malkoha	Phaenicophaeus curvirostris	Mentawai Malkoha Phaenicophaeus oeneicaudus is split from Chestnut-breasted Malkoha P. curvirostris based on morphological differences (del Hoyo & Collar 2014; HBW/BirdLife; Eaton et al. 2021).
AS 14.2	Sulawesi Brush Cuckoo	Cacomantis virescens	Sunda Brush Cuckoo (formerly Rusty-breasted Cuckoo)	Cacomantis sepulcralis	Sulawesi Brush Cuckoo Cacomantis virescens is split from Cacomantis sepulcralis based on morphology and vocalizations (R.B. Payne, ms; Wu et al. 2022)
AS 14.2	Solomons Brush Cuckoo	Cacomantis addendus	(Australian) Brush Cuckoo	Cacomantis variolosus	Solomons Brush Cuckoo Cacomantis addendus is split from C. variolosus based on vocalizations and morphology (Wu et al. 2022).
AS 14.2	Manus Brush Cuckoo	Cacomantis blandus	(Australian) Brush Cuckoo	Cacomantis blandus	Manus Brush Cuckoo Cacomantis blandus is split from C. variolosus based on vocalizations and morphology (Wu et al. 2022).
AS 14.2	Pied Bronze Cuckoo	Chalcites crassirostris	Little Bronze Cuckoo	Chalcites minutillus	Pied Bronze Cuckoo Chalcites crassirostris is split from Little Bronze Cuckoo C. minutillus based on distinctive plumage and vocalizations (Eaton et al. 2021; WGAC 1038).
NEW	Marquesan Swamphen	Porphyrio paepae			Extinct. Known from reports perhaps as late as 1937. Confirmed from subfossil remains and featured in a contemporary painting by Gaugin (1902) Le Sorcier d'Hiva Oa ou le Marquisien à la cape rouge (Hume, 2017).
AS 14.2	Mongolian Gull	Larus mongolicus	Vega Gull	Larus vegae	Mongolian Gull Larus mongolicus is split from Vega Gull L. vegae with which it was previously placed. It is morphologically distinct from that species; it differs ecologically, and its vocalizations also appear to be the most distinctive of the species in the "Herring Gull" complex (WGAC 1136).
AS 14.2	Cocos Booby	Sula brewsteri	Brown Booby	Sula leucogaster	Cocos Booby Sula brewsteri is split from Brown Booby Sula leucogaster based on differences in plumage and assortive mating where they co-occur (Thibault & Cibois 2017; VanderWerf 2023; Chesser et al. 2024)
AS 14.2	Western Yellow-billed Barbet	Trachyphonus goffinii	(Eastern) Yellow-billed Barbet	Trachyphonus purpuratus	Western Yellow-billed Barbet Trachyphonus goffinii (including togoensis) is split from (Eastern) Yellow-billed Barbet Trachyphonus purpuratus (including elgonensis) based on differences in morphology and deep mtDNA divergence (Moyle 2004; del Hoyo & Collar 2014; HBW/BirdLife).
AL 14.2	Macquarie Parakeet	Cyanoramphus erythrotis	Red-crowned Parakeet	Cyanoramphus novaezelandiae	Extinct Macquarie Parakeet Cyanoramphus erythrotis is lumped with Cyanoramphus novaezelandiae based on similar morphology and no compelling evidence that supports a split (OSNZ 2020; BirdLife; Schodde pers. comm., WGAC 646).
AS 14.2	Northern Plain Xenops	Xenops mexicanus	Amazonian (Plain) Xenops	Xenops genibarbis	Northern Plain Xenops Xenops mexicanus (including ridgwayi, littoralis, olivaceus, and neglectus) is split from Amazonian (Plain) Xenops Xenops genibarbis based on differences in plumage, vocalizations, and nuDNA genomics (Harvey & Brumfield 2015; Arbeláez-Cortés 2020; SACC 996, SACC 1022a),
NEW 14.2	White-tailed Tityra	Tityra leucura			The taxonomic status of White-tailed Tityra T. leucura has been uncertain (Whittaker 2008; SACC 634). The unique type specimen, a subadult, has sometimes been regarded as a possible variant of Tityra inquisitor. But there is increasing evidence that it is a valid species based on a field observation in 2006 (Whittaker 2008) and photographs of an adult in the forest canopy that were published on-line (Agami Nature Tours 2023). Generic assignment may need revision. Treatment as a valid species aligns with Dickinson & Christidis (2014); del Hoyo & Collar (2016) and HBW/BirdLife.
AS 14.2	Sandhill Grasswren	Amytornis oweni	Rufous (Pilbara) Grasswren	Amytornis whitei	Sandhill Grasswren Amytornis oweni (including aenigma) is split from Rufous (Pilbara) Grasswren A. whitei based on differences in morphology and ecology (Christidis et al. 2013; WGAC 988)
AS 14.2	Mindoro Cuckooshrike	Coracina mindorensis	Bar-bellied Cuckooshrike	Coracina striata	Mindoro Cuckooshrike Coracina mindorensis is split from Bar-bellied Cuckooshrike C. striata based on striking differences in vocalizations and plumage.
AS 14.2	Visayan Cuckooshrike	Coracina panayensis	Bar-bellied Cuckooshrike	Coracina striata	Visayan Cuckooshrike Coracina panayensis is split from Bar-bellied Cuckooshrike C. striata based on differences in morphology and vocalizations (del Hoyo & Collar 2016; Allen 2020; HBW/BirdLife).
AS 14.2	Sulu Cuckooshrike	Coracina guillemardi	Bar-bellied Cuckooshrike	Coracina striata	Sulu Cuckooshrike Coracina guillemardi is split from Bar-bellied Cuckooshrike C. striata based on differences in morphology and vocalizations supported by limited mtDNA analysis (Jønsson et al. 2008, 2010),
AS 14.2	Mindanao Cuckooshrike	Coracina kochii	Sulu Cuckooshrike	Coracina guillemardi	Mindanao Cuckooshrike Coracina kochii (including boholensis) is split from Bar-bellied Cuckooshrike C. striata based on differences in vocalizations supported by morphological differences and moderate mtDNA divergence (Jønsson et al. 2008, 2010).
AS 14.2	Malayan Cuckooshrike	Coracina larutensis	Large Cuckooshrike		Malayan Cuckooshrike is split from Large Cuckooshrike on the basis of differences in morphology and vocalizations (WGAC 1088).
AS 14.2	Timor Cicadabird	Edolisoma timoriense	Common Cicadabird	Edolisoma tenuirostre	Timor Cicadabird Cicdabird Edolisoma timoriense (including kalaotuae and emancipatum) is split from Common Cicadabird E. tenuirostre based on morphology supported by molecular genetics (WGAC 1072; Pedersen et al. 2018).
AS 14.2	Malaita Cicadabird	Edolisoma tricolor	Black-bellied Cicadabird (Solomons Cuckooshrike).	Edolisoma holopolium	Monotypic Malaita Cicadabird Edolisoma tricolor is split from E. holopolium (with pygmaeum) based on molecular phylogeny, plumage, and vocalizations (Pedersen et al. 2018; WGAC 1085).
AS 14.2	Sangihe Cicadabird	Edolisoma salvadorii	Sulawesi Cicadabird	Edolisoma morio	Sangihe Cicadabird Edolisoma salvadorii (including talautense) is split from Sulawesi Cicadabird Edolisoma morio based on differences in female plumage and molecular divergence (Pedersen et al. 2018; Eaton et al. 2021; WGAC 1072).
AS 14.2	Central Melanesian Cicadabird	Edolisoma erythropygium	Common Cicadabird	Edolisoma tenuirostre	Central Melanesian Cicadabird Edolisoma erythropygium (including ssp. rooki, saturatius and nisorium) is a species concept stemming from the taxonomic revision of the Australasian cicadabirds based on the integration of genomic and mtDNA data with assessments of plumage and vocalizations (Pedersen et al. 2018; McCullough et al. 2022; WGAC 1072). It includes rooki formerly attributed to Edolisoma tenuirostre and three other subspecies (saturatius, nisorium, and erythropygium) that were formerly included in E. remotum.
AS 14.2	Rossel Cicadabird	Edolisoma rostratum	Common Cicadabird	Edolisoma tenuirostre	Rossel Cicadabird Edolisoma rostratum is split from Common Cicadabird E. tenuirostre based on the integration of genomic amd mtDNA data with assessments of plumage and vocalizations (Pedersen et al. 2018; Eaton et al. 2021; McCullough et al. 2022; WGAC 1072).
AS 14.2	North Moluccan Cicadabird	Edolisoma grayi	Common Cicadabird	Edolisoma tenuirostre	North Moluccan Cicadabird Edolisoma grayi (including pererratum) is split from Common Cicadabird E. tenuirostre based on the integration of genomic and mtDNA data with assessments of plumage and vocalizations (Pedersen et al. 2018; Eaton et al. 2021; McCullough et al. 2022; WGAC 1072).
AS 14.2	South Moluccan Cicadabird	Edolisoma amboinense	Common Cicadabird	Edolisoma tenuirostre	Monotypic South Moluccan Cicadabird is split from Common Cicadabird E. tenuirostre based on the integration of genomic and mtDNA data with assessments of plumage and vocalizations (Pedersen et al. 2018; Eaton et al. 2021; McCullough et al. 2022; WGAC 1072).
AS 14.2	Banggai Cicdabird	Edolisoma pelingi	Common Cicadabird	Edolisoma tenuirostre	Banggai Cicadabird Edolisoma pelingi is split from Common Cicadabird E. tenuirostre based on morphology supported by molecular genetics (WGAC 1072; Pedersen et al. 2018).
AS 14.2	Obi Cicadabird	Edolisoma obiense	Common Cicadabird	Edolisoma tenuirostre	Obi Cicadabird Edolisoma obiense is split from Common Cicadabird E. tenuirostre based on morphology supported by molecular genetics (WGAC 1072; Pedersen et al. 2018; HBW/BLI).
AS 14.2	Geelvink Cicadabird	Edolisoma meyerii	Common Cicadabird	Edolisoma tenuirostre	Geelvink Cicadabird Edolisoma meyerii (including numforanum) is split from Common Cicadabird E. tenuirostre based on morphology supported by molecular genetics (WGAC 1072; Pedersen et al. 2018; HBW/BLI; Gregory 2017).
AS 14.2	Selayar Whistler	Pachycephala teysmanni	Rusty-breasted Whistler	Pachycephala fulvotincta	Selayar Whistler Pachycephala teysmanni is spit from Rusty-breasted Whistler Pachycephala fulvotincta on the basis of its sexually monomorphic plumage (Eaton et al. 2021; HBW/BirdLife).
AS 14.2	Nendo Whistler	Pachycephala ornata	Vanikoro (formerly Temotu) Whistler	Pachycephala vanikorensis	Nendo Whistler Pachycephala ornata is split from Pachycephala vanikorensis on the basis mtDNA analysis (Jønsson et al. 2014) and differences in plumage.
AS 14.2	Utupua Whistler	Pachycephala utupuae	Vanikoro (formerly Temotu) Whistler	Pachycephala vanikorensis	Utupua Whistler Pachycephala utupuae is split from Pachycephala vanikorensis on the basis of striking differences in female plumage.
AS 14.2	Yellow-throated Fiji Whistler	Pachycephala graeffii	(White-throated) Fiji Whistler	Pachycephala vitiensis	Yellow-throated Fiji Whistler Pachycephala graeffii (including bella, koroana, torquata, aurantiiventris, ambigua and optata) is split from White-throated Fiji Whister P. vitiensis based on differences in plumage and vocalizations (WGAC 1207).
AS 14.2	Babar Whistler	Pachycephala sharpei	Yellow-throated Whistler	Pachycephala macrorhyncha	Babar Whistler Pachycephala sharpei is split from Yellow-throated Whistler P. macrorhyncha based on deep mtDNA divergence, morphology, and distinct female plumage (Jønsson et al. 2014; Eaton et al. 2021). Resequence.
AS 14.2	Malaita Monarch	Symposiachrus malaitae	Solomons Monarch	Symposiachrus barbatus	Malaita Monarch Symposiachrus malaitae is split from Solomons Monarch S. barbatus based on differences in plumage supported by phylogenetic analysis (Andersen et al. 2015; del Hoyo & Collar 2016; HBW/BirdLife).
AS 14.2	Vella Lavella Monarch	Symposiachrus nigrotectus	Kolombangara Monarch	Symposiachrus browni	Vella Lavella Monarch Symposiachrus nigrotectus (including ganongae) is split from Kolombangara Monarch S. browni based on differences in plumage supported by phylogenetic analysis (Andersen et al. 2015; see del Hoyo & Collar 2016).
AL 14.2	Bougainville Monarch	Monarcha erythrostictus	Chestnut-bellied Monarch	Monarcha castaneiventris	Bougainville Monarch Monarcha erythrostictus is tentatively lumped with Chestnut-bellied Monarch M. castaneiventris (WGAC 1054). Despite its distinctive morphology, phylogenetic analysis reveals that it falls within the same clade as samples of M. castaneiventris from neighboring Choiseul (Uy et al 2008). Treatment as a subspecies of M. castaneiventris aligns with HBW/BirdLife. See del Hoyo & Collar (2016);
AL 14.2	Dyaul Flycatcher	Myiagra cervinicolor	Velvet Flycatcher	Myiagra eichhorni	Dyaul Flycatcher Myiagra cervinicolor was previously split from M. hebetior based on morphometrics, strikingly different female plumage, and vocalizations (Gregory 2017; HBW/BirdLife). However, upon reconsideration, M. cervinicolor is subsequently lumped with Myiagra eichhorni (14.2). Evidence for species status for cervinicolor (as distnct from M. eichhorni) is not deemed strong enough.
AS 14.2	Southern Nutcracker	Nucifraga hemispila	Spotted (Northern) Nutcracker	Nucifraga caryocatactes	Southern Nutcracker Nucifraga hemispila (including macella, interdicta and owstoni) is split from Spotted (Northern) Nutcracker on the basis of morphology and vocalizations supported by phylogenetic analysis (del Hoyo & Collar 2016; de Raad et al. 2022; HBW/BirdLife).
AS 14.2	Sulawesi Crow	Corvus celebensis	Slender-billed Crow	Corvus enca	Sulawesi Crow Corvus celebensis (including mangoli) is split from Slender-billed Crow C. enca based on deep mtDNA divergence and voice (Eaton et al. 2021).
AS 14.2	Sierra Madre Crow	Corvus sierramadrensis	Samar (Small) Crow	Corvus samarensis	Sierra Madre Crow Corvus sierramadrensis is split from Corvus samarensis based on vocal and morphological differences (Allen 2020).
AS 14.2	Philippine Jungle Crow	Corvus philippinus	Large-billed Crow	Corvus macrorhynchos	Genetically and vocally distinct Philippine Jungle Crow C. philippinus is split from Large-billed Crow C. macrorhynchos (Allen 2020; Eaton et al. 2021).
AL 14.2	Japanese Tit	Parus minor	Cinereous Tit	Parus cinereus	Parus cinereus and Parus minor were previously split from P. major as two species: Cinereous Tit and Japanese Tit (Päckert et al. 2005; Eck & Martens 2006; Collar 2007; Zhao et al. 2012). But the genetic analyses by Päckert & Martens (2008), Zhao et al (2012) and Song et al. (2020) suggest that the Parus major complex may be better interpreted as comprising two species: East Asian P. cinereus (cinereus + minor) which forms a sister clade to Palearctic P. major (major + bokharensis). See WGAC #1100. "Cinereous Tit" is tentatively assigned as the English name for the lumped species.
AL 14.2	Foxy Lark	Calendulauda alopex	Fawn-colored Lark	Calendulauda africanoides	Foxy Lark Calendulauda alopex (including intercedens) is lumped with Fawn-colored Lark C. africanoides based on shallow genetic divergence (Alström et al. 2013) and only slight differences in morphology (Ryan 2022; Clements 2022; HBW/BirdLife).
AL 14.2	Barlow's Lark	Calendulauda barlowi	Dune Lark	Calendulauda erythrochlamys	Barlow's Lark Calendulauda barlowi (including patae and cavei) is lumped with Dune Lark C. erythrochlamys on the basis of very shallow genetic divergence and essentially identical vocalizations and size (Alström et al. 2013; del Hoyo & Collar 2016; Ryan & Kirwan 2022; HBW/BirdLife).
AS 14.2	Kidepo Lark	Corypha kidepoensis	Red-winged Lark	Corypha (Mirafra) hypermetra	Kidepo Lark Corypha kidepoensis (including kathangorensis) is split from Red-winged Lark Corypha hypermetra based on a comprehensive integrated analysis including plumage, morphometrics, vocalizations, display and phylogenetics (Alström et al. 2024).
AS 14.2	Highland Lark	Corypha kurrae	Rufous-naped Lark	Corypha (Mirafra) africana	Highland Lark Corypha kurrae (including henrici, batesi, stresemanni, and bamendae) is split from Rufous-naped Lark C. africana based on a comprehensive integrated analysis including plumage, morphometrics, vocalizations, display and phylogenetics (Alström et al. 2024).
AS 14.2	Sentinel Lark	Corypha athi	Rufous-naped Lark	Corypha (Mirafra) africana	Sentinel Lark Corypha athi (including harterti) is split from Rufous-naped Lark C. africana based on a comprehensive integrated analysis including plumage, morphometrics, vocalizations, display and phylogenetics (Alström et al. 2024).
AS 14.2	Plains Lark	Corypha kabalii	Rufous-naped Lark	Corypha (Mirafra) africana	Plains Lark Corypha kabalii (including malbranti and irwini) is split from Rufous-naped Lark C. africana based on a comprehensive integrated analysis including plumage, morphometrics, vocalizations, display and phylogenetics (Alström et al. 2024).
AS 14.2	Plateau Lark	Corypha nigrescens	Rufous-naped Lark	Corypha (Mirafra) africana	Plateau Lark Corypha nigrescens (including nyikae) is split from Rufous-naped Lark C. africana based on a comprehensive integrated analysis including plumage, morphometrics, vocalizations, display and phylogenetics (Alström et al. 2024).
AL 14.2	Ash's Lark	Corypha (Mirafra) ashi	Somali Lark		Ash's Lark Corypha (Mirafra) ashi is lumped with Somali Lark Corypha somalica based on molecular and behavioral evidence, and shared type locality. Includes rochei as a synonym (Alström et al. 2024).
AS 14.2	Pale-throated Greenbul	Atimastillas flavigula	Yellow-gorgeted Greenbul (Yellow-throated Leaflove)	Atimastillas flavicollis	Pale-throated Greenbul Atimastillas flavigula (including soror) is split from Yellow-gorgeted Greenbul (Yellow-throated Leaflove) A. flavicollis based on differences in morphology and vocalizations (del Hoyo & Collar 2016; HBW/BirdLife).
AL 14.2	Olive-headed Greenbul	Arizelocichla olivaceiceps	Stripe-faced Greenbul	Arizelocichla striifacies	Arizelocichla olivaceiceps is lumped with Arizelocichla striifacies based on the absence of consistent morphological differences and similarity of vocalizatons (del Hoyo & Collar 2016; HBW/BirdLife). English name of lumped species is Olive-headed Greenbul.
AS 14.2	Angola Greenbul	Phyllastrephus viridiceps	White-throated Greenbul	Phyllastrephus albigularis	Angola Greenbul Phyllastrephus viridiceps is split from White-throated Greenbul P. albigularis based on differences in vocalizations and morphology (del Hoyo & Collar 2016; HBW/BirdLife).
AS 14.2	Red-throated Rock Martin	Ptyonoprogne rufigula	(Large) Rock Martin	Ptyonoprogne fuligula	Red-throated Rock Martin Ptyonoprogne rufigula (including bansoensis) is split from (Large) Rock Martin P. fuligula based on morphology supported by phylogenomic analysis (Brown 2019; del Hoyo & Collar 2016; HBW/BLI).
AS 14.2	Pacific Swallow	Hirundo javanica	Tahiti Swallow	Hirundo tahitica	Monotypic Tahiti Swallow Hirundo tahitica and polytypic Pacific Swallow H. javanica are split based on differences in morphology (del Hoyo & Collar 2016; HBW/BirdLife).
AS 14.2	European Red-rumped Swallow	Cecropis rufula	(Eastern) Red-rumped Swallow	Cecropis daurica	Monotypic European Red-rumped Swallow Cecropis rufula is split from (Eastern) Red-rumped Swallow Cecropis daurica based on differences in morphology and molecular divergence (Sheldon et al. 2005; Brown 2019; Eaton et al. 2016, 2021; HBW/BLI; WGAC 1043).
AS 14.2	African Red-rumped Swallow	Cecropis melanocrissus	(Eastern) Red-rumped Swallow	Cecropis daurica	African Red-rumped Swallow Cecropis melanocrissus (including kumboensi, emini and domicella) is split from other taxa in the Red-rumped Swallow complex based on morphology and supported by limited molecular phylogeny (Sheldon et al. 2005; Brown 2019; Eaton et al. 2016, 2021; WGAC 1043).
AL 14.2	West African Swallow	Cecropis domicella	African Red-rumped Swallow	Cecropis melanocrissus	West African Swallow Cecropis domicella is lumped with African Red-rumped Swallow Cecropis melanocrissus following HBW/BLI and WGAC 1043). Morphological differences are relatively minor and the only available molecular studies (Sheldon et al. 2005; Brown 2019) are non-contributary since they only examine domicella or emini, but not both.
AL 14..2	Striated Swallow	Cecropis striolata	(Eastern) Red-rumped Swallow	Cecropis daurica	Striated Swallow Cecropis striolata (including ssp mayri, stanfordi, vernayi and striolata) is lumped with (Eastern) Red-rumped Swallow Cecropis daurica. Morphological variation in the strength of the underparts streaking, the primary feature that presumably separates the two "species", is generally clinal from north to south and ssp. japonica and ssp. mayri are virtually identical (Eaton et al. 2016, 2021; HBW/BLI, WGAC 1043)
AL 14.2	Rock-loving Cisticola	Cisticola emini	Lazy Cisticola	Cisticola aberrans	Rock-loving Cisticola Cisticola emini (including petrophilus and admiralis), originally recognized by Sibley & Monroe (1970) is lumped with Lazy Cisticola Cisticola aberrans. These allopatric taxa vary only slightly in morphology, but they are similar in vocalizations and ecology (Dowsett & Dowsett-Lemaire 1993). The two forms are usually treated as conspecific (Dickinson & Christidis 2014; del Hoyo & Collar 2016; HBW/BirdLife).
AS 14.2	Huambo Cisticola	Cisticola bailunduensis	Lazy (Rock-loving) Cisticola	Cisticola aberrans	Huambo Cisticola Cisticola bailunduensis is split from Lazy Cisticola (formerly Rock-loving Cisticola) based on significantly different vocalizations coupled with morphological and ecological differences (del Hoyo & Collar 2016; HBW/BirdLife).
AS 14.2	Maasai Apalis	Apalis stronachi	Karamoja Apalis	Apalis karamojae	Maasai Apalis Apalis stronachi is split from Karamoja Apalis A. karamojae based on substantial vocal differences and minor differences in morphology (Boesman & Collar 2023).
AL 14.2	Salvadori's Eremomela	Eremomela salvadorii	Yellow-bellied Eremomela	Eremomela icteropygialis	Salvadori's Eremomela Eremomela salvadorii is lumped with Yellow-bellied Eremomela E. icteropygialis. Vocalizations are similar, and there are only minor differences in plumage which overlap with those of E. i. polioxantha (Dowsett & Dowsett-Lemaire 1993; Dickinson & Christidis 2014; del Hoyo & Collar 2016; HBW/BirdLife).
AS 14.2	Kafa White-eye	Zosterops kaffensis	Heuglin's White-eye	Zosterops poliogastrus	Kafa White-eye Zosterops kaffensis is split from Z. poliogastrus based on mtDNA divergence and differences in plumage (Habel et al. 2015; del Hoyo & Collar 2016; Martins et al. 2020; HBW/BirdLife). Tentatively includes kulalensis. Spelling of English name "Kafa" rather than "Kaffa" follows HBW/BirdLife and others.
AS 14.2	Angola White-eye	Zosterops kasaicus	Northern Yellow White-eye	Zosterops senegalensis	Angola White-eye Zosterops kasaicus (including heinrichi and quanzae) is split from Northern Yellow White-eye Z. senegalensis on the basis of phylogenetic divergence (Martins et al. 2020). The specific epithet kasaicus Chapin, 1932 has priority over quanzae Meyer de Schauensee, 1933 [often attributed to 1932 but not actually published until 1933. (fide R. Dowsett.)].
AL 14.2	Buff-chested Babbler	Cyanoderma ambiguum	Rufous-fronted Babbler	Cyanoderma rufifrons	Buff-chested Babbler Cyanoderma ambiguum (including planicola, adjunctum, and insuspectum) is lumped with Rufous-fronted Babbler C. rufifrons. Basis of initial separation is dubious, and there is no proven sympatry nor obvious dichotomy in plumage or voice between the two forms (Harrison 1987; Inskipp et al. 1996; Robson 2005; Rasmussen & Anderton 2012; del Hoyo & Collar 2016; HBW/BirdLife).
AS 14.2	Red-eyed Scimitar Babbler	Erythrogenys imberbis	Rusty-cheeked Scimitar Babbler	Erythrogenys erythrogenys	Red-eyed Scimitar Babbler Erythrogenys imberbis (including celata) is split from Rusty-cheeked Scimitar Babbler E. erythrogenys based on differences in morphology and vocalizations (Berryman et al. 2023).
AS 14.2	Grey-browed Wren	Pheugopedius schulenbergi	Plain-tailed Wren	Pheugopedius euophrys	Grey-browed Wren Pheugopedius schulenbergi is split from Plain-tailed Wren P. euophrys based on its distinctive vocalizations and modest morphological differences (del Hoyo & Collar 2016; HBW BirdLife).
AS 14.2	Southern House Wren	Troglodytes musculus	(Northern) House Wren	Troglodytes aedon	Southern House Wren Troglodytes musculus (21 subspecies) is split from House Wren Troglodytes aedon s.l. based on deep genomic divergence (Flicka et al. 2023) and differences in vocalizations and morphology (Oberholser 1904; Sosa-López & Mennill 2014; Sosa-López et al. 2016). See Chesser et al. (2024).
AS 14.2	Cozumel Wren	Troglodytes beani	(Northern) House Wren	Troglodytes aedon	Cozumel Wren Troglodytes beani is split from House Wren Troglodytes aedon s.l. based on differences in plumage, vocalizations and genetics (Oberholser 1904; Sosa-López & Mennill 2014; Sosa-López et al. 2016; Boesman 2016 ; Klicka et al. 2023). See Chesser et al. (2024).
AS 14.2	Kalinago Wren	Troglodytes martinicensis	(Northern) House Wren	Troglodytes aedon	Kalinago Wren Troglodytes martinicensis (including guadeloupensis and rufescens) is split from House Wren Troglodytes aedon s.l. based on differences in plumage. On Dominica, where the species is extant, also by vocalizations and genetics (Wetten 2021; Klicka et al. 2023). See Chesser et al. (2024).
AS 14.2	St. Lucia Wren	Troglodytes mesoleucus	(Northern) House Wren	Troglodytes aedon	St. Lucia Wren Troglodytes mesoleucus is split from House Wren Troglodytes aedon s.l. based on ecology, behavior, morphology and vocalizations (Oberholser 1904; Gilardi & John 1998; Wetten 2021). See Chesser et al. (2024).
AS 14.2	St. Vincent Wren	Troglodytes musicus	(Northern) House Wren	Troglodytes aedon	St. Vincent Wren Troglodytes musicus is split from House Wren Troglodytes aedon s.l. based on differences in vocalizations, plumage, ecology and genetics (Oberholser 1904; Klicka et al. 2023). See Chesser et al. (2024).
AS 14.2	Grenada Wren	Troglodytes grenadensis	(Northern) House Wren	Troglodytes aedon	Grenada Wren Troglodytes grenadensis is split from House Wren Troglodytes aedon s.l. based on differences in morphology and genetics (Wetten 2021; Klicka et al. 2023). See Chesser et al. (2024).
AS 14.2	Northern Chestnut-breasted Wren	Cyphorhinus dichrous	(Southern) Chestnut-breasted Wren	Cyphorhinus thoracicus	Northern Chestnut-breasted Wren Cyphorhinus dichrous is split from (Southern) Chestnut-breasted Wren C. thoracicus based on strking vocal differences despite minor morphological difference (del Hoyo & Collar 2016; HBW/BirdLife).
AS 14.2	Maranon Gnatcatcher	Polioptila maior	Tropical Gnatcatcher	Polioptila plumbea	Maranon Gnatcatcher Polioptila maior is split from Tropical Gnatcatcher Polioptila plumbea. It is morphologically, genetically and vocally distinct and lacks significant sexual dimorphism (Smith et al. 2018; del Hoyo & Collar 2016; HBW/BirdLife 2016).
AS 14.2	St. Lucia Thrasher	Ramphocinclus sanctaeluciae	White-breasted (Martinique) Thrasher	Ramphocinclus brachyurus	St. Lucia Thrasher Ramphocinclus sanctaeluciae is split from White-breasted (Martinique) Thrasher Ramphocinclus brachyurus based deep genetic divergence combined with differences in plumage and voice (del Hoyo & Collar 2016; DaCosta et al. 2019; Chesser et al. 2024).
AS 14.2	Mindoro Island Thrush, Luzon Island Thrush, Mindanao Island Thrush, Wallacean Island Thrush, Christmas Island Thrush, Sundaic Island Thrush, Moluccan Island Thrush, Papuan Island Thrush, Bismarck Island Thrush, Bougainville Island Thrush, Solomons Island Thrush, Vanikoro Island Thrush, White-headed Island Thrush, New Caledonian Island Thrush, Tasman Sea Island Thrush, Samoan Island Thrush, Fiji Island Thrush	Turdus mindorensis, Turdus thomassoni, Turdus nigrorum, Turdus schlegelii, Turdus erythropleurus, Turdus javanicus, Turdus deningeri, Turdus papuensis, Turdus heinrothi, Turdus bougainvillei, Turdus kulambangrae, Turdus vanikorensis, Turdus pritzbueri, Turdus xanthopus, Turdus poliocephalus, Turdus samoensis, Turdus ruficeps	Island Thrush	Turdus poliocephalus	Polytypic Island Thrush Turdus poliocephalus is split into seventeen species based on UCE phylogenetics supported by geographical distribution, variations in plumage and, in some instances, vocalizations (Reeve et al. 2023; WGAC 998). This is a fairly conservative treatment and more splits may eventually be expected.
AS 14.2	Maratua Shama	Copsychus barbouri	White-crowned Shama	Copsychus stricklandii	Maratua Shama C. barbouri is split from White-crowned Shama based on morphology and mtDNA divergence (Chua et al. 2015; Eaton et al. 2016, 2021).
AS 14.2	Sri Lanka Shama	Copsychus leggei	White-rumped Shama	Copsychus malabaricus	Sri Lanka Shama Copsychus leggei is split from White-rumped Shama based on genomic studies (Wu et al. 2022).
AS 14.2	Kangean Shama	Copsychus nigricauda	White-rumped Shama	Copsychus malabaricus	Kangean Shama Copsychus nigricauda is split from White-rumped Shama based on genomic studies (Wu et al. 2022).
AS 14.2	Larwo Shama	Copsychus omissus	White-rumped Shama	Copsychus malabaricus	Larwo Shama Copsychus omissus (including javanus) is split from White-rumped Shama based on genomic studies (Wu et al. 2022).
AS 14.2	Flores Flowerpecker	Dicaeum rhodopygiale	Blood-breasted Flowerpecker	Dicaeum sanguinolentum	Flores Flowerpecker Dicaeum rhodopygiale is split from Blood-breasted Flowerpecker D. sanguinolentum on the basis of plumage vocal differences (Rheindt & Eaton 2019) .
AS 14.2	Sumba Flowerpecker	Dicaeum wilhelminae	Blood-breasted Flowerpecker	Dicaeum sanguinolentum	Sumba Flowerpecker Dicaeum wilhelminae is split from Blood-breasted Flowerpecker D. sanguinolentum on the basis of plumage and vocal differences (Rheindt & Eaton 2019).
AS 14.2	Timor Flowerpercker	Dicaeum hanieli	Blood-breasted Flowerpecker	Dicaeum hanieli	Timor Flowerpecker Dicaeum hanieli is split from Blood-breasted Flowerpecker D. sanguinolentum on the basis of plumage and vocal differences (Rheindt & Eaton 2019).
AS 14.2	Gorgeous Sunbird	Cinnyris melanogastrus	Beautiful Sunbird	Cinnyris pulchellus	Gorgeous Sunbird Cinnyris melanogastrus is split from Beautiful Sunbird C. pulchellus based on parapatry with consistent differences in morphology (del Hoyo & Collar 2016; HBW/BirdLife).
AS 14.2	Siberian Pipit	Anthus japonicus	Buff-bellied (American) Pipit	Anthus rubescens	Siberian Pipit Anthus japonicus is split from Buff-bellied (American) Pipit A. rubescens based on differences in morphology, genetics and flight calls (Chesser et al. 2024).
AL 14.2	Lesser Redpoll, Arctic Redpoll	Acanthis cabaret, Acanthis hornemanni	Redpoll (Common Redpoll)	Acanthis flammea	Treat all of the redpoll taxa as conspecific with the English name "Redpoll" (IOC 14.2) following Chesser et al. (2024) based on genomic homogeneity, continuous phenotypic variation, overlapping habitat, and lack of evidence of prolonged isolation (Mason & Taylor 2015; Funk et al. 2021).
AS 14.2	Grey-crowned Goldfinch	Carduelis caniceps	European Goldfinch	Carduelis carduelis	Grey-crowned Goldfinch Carduelis caniceps is split from European Goldfinch C. carduelis on the basis of difference in plumage, bill morphology, and voice (del Hoyo & Collar 2016; HBW/BirdLife).
AS 14.2	Maranon Sparrow	Arremon nigriceps	Black-capped Sparrow	Arremon abeillei	Maranon Sparrow Arremon nigriceps is split from Black-capped Sparrow A. abeillei based on differences in plumage, vocalizations, and genetic divergence comparable to similar species pairs within the genus (del Hoyo & Collar 2016; HBW/BirdLife; Buainain et al 2022).
AS 14.2	Taczanowski's Brushfinch	Atlapetes taczanowskii	Slaty Brushfinch	Atlapetes schistaceus	Taczanowski's Brushfinch Atlapetes taczanowskii is split from Slaty Brushfinch A. schistaceus based on differences in morphology, vocalizations and mtDNA divergence (del Hoyo & Collar 2016; HBW/BirdLife; Sánchez-González et al. 2015).

Proposed Splits/Lumps IOC Version 14.1

Number	English Name	Scientific Name	Parent	Parent (sci)	Proposal
AS 7.1	Yellow-billed Egret	Ardea brachyrhyncha	Medium (Intermediate) Egret	Ardea intermedia	Yellow-billed Egret Ardea brachyrhyncha is split from Ardea intermedia based on differences in proportions and substantial differences in high breeding plumage (del Hoyo & Collar 2014; WGAC).
AS 7.1	Plumed Egret	Ardea plumifera	Medium (Intermediate) Egret	Ardea intermedia	Plumed Egret Ardea plumifera is split from Ardea intermedia based on differences in proportions and substantial differences in high breeding plumage (del Hoyo & Collar 2014; WGAC).
AS 14.1	Northern Black-throated Trogon	Trogon tenellus	(Amazonian) Black-throated Trogon	Trogon rufus	Northern Black-throated Trogon Trogon tenellus is split from T. rufus on the basis of deep genetic divergence combined with vocal and morphological differention (Dickens et al. 2021; SACC 921; WGAC). English name tentative.
AS 14.1	Choco Black-throated Trogon	Trogon cupreicauda	(Amazonian) Black-throated Trogon	Trogon rufus	Choco Black-throated Trogon Trogon cupreicauda is split from T. rufus on the basis of deep genetic divergence combined with vocal and morphological differention (Dickens et al. 2021; SACC 921; WGAC). English name tentative.
AS 14.1	Atlantic Black-throated Trogon	Trogon chrysochloros	(Amazonian) Black-throated Trogon	Trogon rufus	Atlantic Black-throated Trogon Trogon chrysochloros (including muriciensis) is split from T. rufus based on moderate genetic divergence combined with vocal and morphological differention (Dickens et al. 2021; SACC 921; WGAC). English name tentative.
AS 14.1	Eastern Dwarf Hornbill	Horizocerus granti	Black (Western) Dwarf Hornbill	Horizocerus hartlaubi	Horizocerus granti is split from Horizocerus hartlaubi on the basis of differences in plumage and bill morphology (del Hoyo & Collar 2014; HBW/BirdLife; WGAC).
AS 14.1	Eastern Long-tailed Hornbill	Horizocerus cassini	Western Long-tailed (White-crested) Hornbill	Horizocerus albocristatus	Monotypic Horizocerus cassini is split from essentially parapatric Horizocerus albocristatus on the basis of differences in plumage and bill markings (del Hoyo & Collar 2014; HBW/BirdLife).
AS 14.1	Rufous-backed Dwarf Kingfisher	Ceyx rufidorsa	Oriental (Black-backed) Dwarf Kingfisher	Ceyx erithaca	Rufous-backed Dwarf Kingfisher Ceyx rufidorsa is split from Ceyx erithaca. Recent genomic studies convincingly show that Ceyx rufidorsa is not a morph of Ceyx erithaca but rather is a genetically distinct taxon. Further, the polymorphism shown within Ceyx rufidorsa is likely due to an ancient introgression of genes rather than more recent, on-going, hybridization which is limited to a narrow zone where these two species meet in n peninsular Malaysia (Lim et al. 2010; Shakya et al. 2023).
AS 14.1	Blue-eared Barbet	Psilopogon cyanotis	Black-eared Barbet	Psilopogon duvaucelii	Psilopogon cyanotis is split from Psilopogon duvaucelii based on facial plumage and a narrow hybrid zone where they come in contact. The more widely distributed P. cyanotis assumes the English name "Blue-eared Barbet" while the more range restricted Psilopogon duvaucelii becomes "Black-eared Barbet".
PL 14.1	Little Spotted Woodpecker	Campethera cailliautii	Little Green Woodpecker	Campethera maculosa	Campethera cailliautii and its three subspecies is a proposed lump with Campethera maculosa based on similar vocalizations, shallow genetic divergence, and hybridization at the contact zone (Prigogine 1988; Fuchs et al. 2017; WGAC 784). The English name of the lumped species is proposed as Green-backed Woodpecker).
AL 14.1	Siau Pitta, Sangihe Pitta	Erythropitta palliceps, Erythropitta caeruleitorques	Sulawesi Pitta	Erythropitta celebensis	Siau Pitta E. palliceps and Sangihe Pitta E. caeruleitorques were formerly treated as a full species (Irestedt et al. 2013; Collar et al. 2015). Treat as a subspecies of Sulawesi Pitta E. celebensis (Eaton et al. 2021).
PS 14.1	North Papuan Pitta	Erythropitta habenichti	(South) Papuan Pitta	Erythropitta macklotii	Proposed split to recognize Erythropitta habenichti as a full species rather than a subspecies of E. macklotii based on deep genetic differences (Irestedt et al. 2013, WGAC 881). However, morphological differences are weak (Collar et al. 2015; Pratt in litt.).
AS 14.1	Nicobar Hooded Pitta, Minahasa Hooded Pitta, Eastern Hooded Pitta, Biak Hooded Pitta	Pitta abbotti, Pitta forsteni, Pitta novaeguineae, Pitta rosenbergii	(Western) Hooded Pitta	Pitta sordida	The Hooded Pitta complex Pitta sordida s.l. is split based on morphology and vocalizations supported by genomic analysis (Allen 2020; Ericson et al. 2019; Eaton et al. 2021; HBW/BirdLife, WGAC).
AL 14.1	Northern Royal Flycatcher	Onychorhynchus mexicanus	Tropical (formerly Amazonian) Royal Flycatcher	Onychorhynchus coronatus	Northern Royal Flycatcher Onychorhynchus mexicanus (including fraterculus) was formerly split from O. coronatus (Stotz et al. 1996; BLI). However, phylogenetic analyses reveal only shallow divergence from all forms except swainsoni (Harvey et al. 2020 ; Reyes et al. 2023), and vocalizations are indistinguishable from O. coronatus. Despite phenotypic distinctiveness from other forms within the O. coronatus radiation, mexicanus and fraterculus are better treated as subspecies of O. coronatus (WGAC 835).
AL 14.1	Pacific Royal Flycatcher	Onychorhynchus occidentalis	Tropical (formerly Amazonian) Royal Flycatcher	Onychorhynchus coronatus	Pacific Royal Flycatcher Onychorhynchus occidentalis was formerly split from O. coronatus (Stotz et al. 1996; BLI). However, phylogenetic analyses reveal only shallow divergence from all forms except swainsoni (Harvey et al. 2020 ; Reyes et al. 2023), and vocalizations are indistinguishable from O. coronatus. Despite phenotypic distinctiveness from other forms within the O. coronatus radiation, occidentalis is better treated as a subspecies of O. coronatus (WGAC 835).
AS 14.1	White-gorgeted Fantail	Rhipidura coultasi	White-winged (Cockerell’s) Fantail	Rhipidura cockerelli	White-gorgeted Fantail Rhipidura coultasi is split from Rhipidura cockerelli on the basis of pronounced differences in plumage and vocal differences suggested by the limited material available (Dutson 2011; HBW/BirdLife; WGAC).
AS 14.1	Guadalcanal Fantail	Rhipidura ocularis	Bougainville (Brown) Fantail	Rhipidura drownei	Guadalcanal Fantail Rhipidura ocularis is split from Brown (now Bougainville) Fantail Rhipidura drownei based on pronounced differences in vocalizations and differences in plumage (HBW/BirdLife; WGAC).
AS 14.1	Vanuatu Streaked Fantail	Rhipdura spilodera	(New Caledonian) Streaked Fantail	Rhipidura verreauxi	Vanuatu Streaked Fantail Rhipdura spilodera is split from other species within the Streaked Fantail species complex based on differences in morphology and vocalizations (HBW/BirdLife, WGAC).
AS 14.1	Fiji Streaked Fantail	Rhipidura layardi	(New Caledonian) Streaked Fantail	Rhipidura verreauxi	Fiji Streaked Fantail Rhipidura layardi (including rufilateralis and erythronota) is split from other species within the Streaked Fantail species complex based on differences in morphology and vocalizations (HBW/BirdLife, WGAC). The three Fijian subspecies may need further splitting into 2 or 3 species pending genomic studies and denser bioacoustic sampling.
AS 14.1	Supertramp Fantail	Rhipidura semicollaris	Arafura Fantail	Rhipidura dryas	Supertramp Fantail Rhipidura semicollaris (including all subspecies except dryas and streptophora) is split from Arafura Fantail R. dryas on the basis of vocalizations (Eaton et al. 2021; WGAC).
AS 14.1	Gilolo Fantail, Louisiade Fantail, Santa Cruz Fantail, Micronesian Rufous Fantail, Solomons Rufous Fantail	Rhipidura torrida, Rhipidura louisiadensis, Rhipidura melanolaema, Rhipidura versicolor, Rhipidura rufofronta	(Australian) Rufous Fantail	Rhipidura rufifrons	Five additional species are split from the Rufous Fantail species complex on the basis of genetic divergence supported by differences in plumage and voice (Klicka et al. 2023; WGAC).
AS 14.1	Glissando Babbler, Leaflitter Babbler	Pellorneum saturatum, Pellorneum poliogene	Short-tailed Babbler (Mourning Babbler)	Pellorneum malaccense	Split Glissando Babbler Pellorneum saturatum and Leaflitter Babbler Pellorneum poliogene from Pellorneum malaccense based on pronounced vocal and genetic differences (Garg et al. 2021; Eaton et al. 2021).
AS 14.1	Bornean Swamp Babbler	Pellorneum macropterum	White-chested Babbler (Malayan Swamp Babbler)	Pellorneum rostratum	Pellorneum macropterum Bornean Swamp Babbler is split from P. rostratum Malayan Swamp Babbler (formerly White-chested Babbler) based on vocal and genetic differences (Cros et al. 2020; Eaton et al. 2021).
AS 14.1	Pink-breasted Flowerpecker	Dicaeum keiense	Mistletoebird	Dicaeum hirundinaceum	Pink-breasted Flowerpecker Dicaeum keiense (including fulgidum) is split from Mistletoebird Dicaeum hirundinaceum based on significant differences in morphology (Eaton et al. 2021; HBW/BirdLife; WGAC)
AS 14.1	Cambodian Flowerpecker, Sumatran Flowerpecker, Fire-throated Flowerpecker	Dicaeum cambodianum, Dicaeum beccarii, Dicaeum luzoniense	Fire-breasted Flowerpecker	Dicaeum ignipectus	Dicaeum cambodianum, Dicaeum beccarii, and Dicaeum luzoniense (including bonga and apo) are split from Fire-breasted Flowerpecker D. ignipectus based on substantial, non-clinal differences in plumage (HBW/BirdLife, WGAC).
AS 14.1	Ornate Sunbird, Palawan Sunbird, Sahul Sunbird, Tukangbesi Sunbird, Flores Sea Sunbird, South Moluccan Sunbird, Mamberamo Sunbird	Cinnyris ornatus, Cinnyris aurora, Cinnyris frenatus, Cinnyris infrenatus, Cinnyris teysmanni, Cinnyris clementiae, Cinnyris idenburgi	Garden (Olive-backed) Sunbird	Cinnyris jugularis	Cinnyris jugularis is split into eight species based on a combination of bioacoustic differences, mtDNA data (Lohman et al. 2010; Marcaigh et al. 2022) and, in many instances, substantial differences in plumage.
AL 14.1	Luzon Sunbird, Bohol Sunbird	Aethopyga jefferyi, Aethopyga decorosa	Metallic-winged Sunbird	Aethopyga pulcherrima	Luzon Sunbird A. jefferyi and Bohol Sunbird A. decorosa are relumped (14.1) with Metallic-winged Sunbird A. pulcherrima. Despite deep mtDNA divergence, supplemented by a limited number of nuclear intron markers, plumage differences are minute and vocal differences are not apparent in the limited number of individuals examined (HBW/BirdLife; WGAC 863).

Proposed Splits/Lumps IOC Version 13.2

Number	English Name	Scientific Name	Parent	Parent (sci)	Proposal
PL 13.2	White-backed Stilt	Himantopus melanurus	Black-necked Stilt	Himantopus mexicanus	Relump Himantopus melanurus with H. mexicanus to align with AOS Classification Committees. Insufficient evidence to support a split without a better understanding of their intergrade zone in Peru and/or more detailed genetic analysis.
PL 13.2	Balearic Shearwater	Puffinus mauretanicus	Yelkouan Shearwater	Puffinus yelkouan	Balearic Shearwater Puffinus mauretanicus is a proposed lump with Yelkouan Shearwater Puffinus yelkouan based on evidence of frequent interbreeding and the presence of numerous mixed colonies (e.g. Genovart et al. 2012), and recent rigorous genomic studies that demonstrate minimal divergence and lack of monophyly (Obiol et al. 2022, Obiol et al. 2023). The merged species, Puffinus yelkouan is assigned the English name Mediterranean Shearwater.
PL 13.2	Red-chested Goshawk	Accipiter toussenelii	African Goshawk	Accipiter tachiro	Red-chested Goshawk Accipiter toussenelii is a proposed lump with African Goshawk A. tachiro based on overlapping morphological features and similarities in vocalizations and behavior, despite DNA divergence (Dowsett & Dowsett-Lemaire 1991, 1993; Louette & Borrow 2010. See Bremen et al. 2012).
AS 13.2	American Goshawk	Accipiter atricapillus	Eurasian Goshawk (Northern) Goshawk	Accipiter gentilis	American Goshawk Accipiter atricapillus (including laingi and apache) is split from Eurasian (Goshawk) Northern Goshawk A. gentilis based on differences in vocalizations, morphology, and mitochondrial and genomic DNA divergence (Geraldes et al. 2019; Kunz et al. 2019; Sangster 2022).
AL 13.2	Vermiculated Screech Owl	Megascops vermiculatus	Middle American Screech Owl	Megascops guatemalae	Vermiculated Screech Owl Megascops vermiculatus is a proposed lump (13.2) with Middle American Screech Owl M. guatemalae based on vocal similarities and distribution, pending further analyses (NACC; Clements).
AS 13.2	West African Pied Hornbill	Lophoceros semifasciatus	Congo (African) Pied Hornbill	Lophoceros fasciatus	West African Pied Hornbill Lophoceros semifasciatus is split from Congo (African) Pied Hornbill L. fasciatus based on differences in morphology with only a narrow hybrid zone in se Nigeria (del Hoyo & Collar 2014; HBW/BirdLife).
AL 13.2	White-chested Tinkerbird	Pogoniulus makawai	Yellow-rumped Tinkerbird	Pogoniulus bilineatus	White-chested Tinkerbird P. makawai, known only from the unique type specimen, was previously treated as a species based on its distinctive morphology (Collar & Fishpool 2006, HBW/BirdLife). But the preponderance of evidence points to it being better treated more likely as an aberrent individual of Yellow-rumped Tinkerbird P. bilineatus (Short & Horne 2001). Available mtDNA data demonstrate it to be deeply embedded within the P. bilineatus complex, which is also supported by limited nDNA results (Kirschel et al. 2018).
AL 13.2	Black-dotted Piculet	Picumnus nigropunctatus	Scaled Piculet	Picumnus squamulatus	"Black-dotted Piculet" Picumnus nigropunctatus is treated as a junior synonym of P. s. obsoletus following Rêgo et al (2014) and SACC. But whether P. s. obsoletus itself should be elevated to full species status requires a more comprehensive re-assessment and understanding of the complex and confusing Picumnus taxonomy in this region.
PL 13.2	Velasquez's Woodpecker	Melanerpes santacruzi	Golden-fronted Woodpecker	Melanerpes aurifrons	Velasquez's Woodpecker Melanerpes santacruzi was previously split from Golden-fronted Woodpecker; including all ssp. except M. a. aurifrons (García-Trejo et al. 2009). Velasquez's Woodpecker is re-lumped (13.2) with Golden-fronted Woodpecker on the basis of more recent genomic and ecological analyses (Llanos-Quevedo et al. 2022; NACC 2023-C-5).
AS 13.2	Necklaced Woodpecker	Dryobates pernyii	Scarlet-breasted Woodpecker	Dryobates cathpharius	Necklaced Woodpecker Dryobates pernyii (including tenebrosus and innixus) is split from Crimson-naped (Crimson-breasted) Woodpecker Dryobates cathpharius based on substantial differences in plumage, particularly the distributon of red on the crown and nape and a distinct necklace on the upper breast in D. pernyii (del Hoyo & Collar 2014; BirdLife).
AS 13.2	Guatemalan Flicker	Colaptes mexicanoides	Northern Flicker	Colaptes auratus	Guatemalan Flicker Colaptes mexicanoides is split from Northern Flicker C. auratus based on genetic, phenotypic, and apparent vocal divergence (del Hoyo & Collar 2014; Manthey et al. 2017; HBW/BirdLife; Chesser et al. 2024).
AL 13.2	Scaly-breasted Woodpecker	Celeus grammicus	Waved Woodpecker	Celeus undatus	Scaly-breasted Woodpecker Celeus grammicus (including verreauxii, subcervinus and latifasciatus) is lumped with Waved Woodpecker Celeus undatus due to their lack of diagnostic vocal, plumage, or genetic differences (Benz & Robbins, 2011; Sampaio et al. 2018; HBW/BirdLife).
AS 13.2	Splendid Woodpecker	Campephilus splendens	Crimson-bellied Woodpecker	Campephilus haematogaster	Splendid Woodpecker Campephilus splendens is split from Crimson-bellied Woodpecker C. haematogaster on several differences in plumage, as well as different calls and pattern of drumming (Ridgely & Greenfield 2001; del Hoyo & Collar 2014; Donegan et al. 2015; HBW/BirdLife).
AS 13.2	Buff-rumped Woodpecker	Meiglyptes grammithorax	Zebra Woodpecker	Meiglyptes tristis	Meiglyptes grammithorax (Buff-rumped Woodpecker) is split from M. tristis (Zebra Woodpecker) based on consistent morphologic differences (del Hoyo & Collar 2014; BirdLife; contra Eaton et al. 2021). Note English name "Buff-rumped Woodpecker" is assigned to the split taxon.
AS 13.2	Citron-crested Cockatoo	Cacatua citrinocristata	Yellow-crested Cockatoo	Cacatua sulphurea	Citron-crested Cockatoo Cacatua citrinocristata is split from C. sulphurea based on morphological differences (Eaton et al. 2021; HBW/BirdLife).
AL 13.2	Tres Marias Amazon	Amazona tresmariae	Yellow-headed Amazon	Amazona oratrix	Relump Tres Marias Amazon Amazona tresmariae with Yellow-headed Amazon Amazona oratrix following NACC, HBW/BirdLife. Insufficient genetic, vocal and morphologic evidence to support the original split in light of rigorous re-evaluation of original and more recent publications. The paraphyly shown in the mtDNA study of Eberhard & Bermingham (2004) is not reproduced in Smith et al. (2022) which show oratrix and tresmariae to be sister taxa.
AL 13.2	Northern Mealy Amazon	Amazona guatemalae	(Southern) Mealy Amazon	Amazona farinosa	Northern Mealy Amazon Amazona guatemalae (including virenticeps) was split from [Southern] Mealy Amazon A. farinosa on the basis of deep mtDNA divergence and differences in morphology (Wenner et al. 2012; HBW Alive; del Hoyo & Collar 2014; HBW/BirdLife). But despite their deep mtDNA divergence, the two Mealy Parrot species apparently demonstrate a broad morphological intergrade zone in Panama, and are not vocally distinct (Hellmich et al. 2021). See NACC 2023-A-16.
PL 13.2	Lord Howe Parakeet	Cyanoramphus subflavescens	Norfolk Parakeet	Cyanoramphus cookii	Extinct Lord Howe Parakeet Cyanoramphus subflavescens is a proposed lump with Norfolk Parakeet C. cookii based on the close zoogeographic connections between these two islands and simlilar morphology (Christidis & Boles 2008).
AL 13.2	Macquarie Parakeet	Cyanoramphus erythrotis	Red-crowned Parakeet	Cyanoramphus novaezelandiae	Extinct Macquarie Parakeet Cyanoramphus erythrotis is a proposed lump with Cyanoramphus novaezelandiae based on similar morphology and no compelling evidence that supports a split (Dickinson & Remsen 2013; Schodde pers. comm.). But see Chambers & Boon (2005).
AL 13.2	Western Ground Parrot	Pezoporus flaviventris	(Eastern) Ground Parrot	Pezoporus wallicus	Western Ground Parrot was split from [Eastern] Ground Parrot based on deep mtDNA divergence (Murphy et al. 2010). But morphological differences between the two forms are minimal, and the split recognized by Murphy was based on a single mitochondrial gene. Both HBW/BirdLife and Clements treat them as conspecific.
AS 13.2	Grey-lored Broadbill	Serilophus rubropygius	Silver-breasted Broadbill	Serilophus lunatus	Grey-browed Broadbill Serilophus rubropygius is split from Silver-breasted Broadbill Serilophus lunatus based on significant differences in morphology and parapatry without evidence of intergradation (Dekker & Dickinson 2000; del Hoyo & Collar 2016; HBW/BirdLife). See also Rasmussen & Anderton (2012).
AS 13.2	Boyaca Antpitta, Atuen Antpitta	Grallaria alticola, Grallaria atuensis	Tawny Antpitta	Grallaria quitensis	Boyaca Antpitta Grallaria alticola and Atuen Antpitta G. atuensis are split from Tawny Antpitta G. quitensis on the basis of morphology and vocalizatons (HBW/BirdLife).
AS 13.2	Little Long-tailed Woodcreeper	Deconychura typica	(Northern) Long-tailed Woodcreeper	Deconychura longicauda	Little Long-tailed Woodcreeper Deconychura typica (including darienensis and minor) is split from the "Long-tailed Woodcreeper" complex D. longicauda s.l., based on morphological and vocal differences supported by genetic analysis (Barbosa 2010; del Hoyo & Collar 2016; Greeney et al. 2023; HBW/BirdLife).
AS 13.2	Southern Long-tailed Woodcreeper	Deconychura pallida	(Northern) Long-tailed Woodcreeper	Deconychura longicauda	Southern Long-tailed Woodcreeper Deconychura pallida (including connectens and zimmeri) is split from the "Long-tailed Woodcreeper" complex, based on morphological and vocal differences supported by genetic analysis (Barbosa 2010; del Hoyo & Collar 2016; Greeney et al. 2023; HBW/BirdLife). Species epithet pallida, simultaneously published with connectens, is awarded precedence by first revisor action (del Hoyo & Collar 2016).
AL 13.2	Brigida's Woodcreeper	Hylexetastes brigidai	Uniform Woodcreeper	Hylexetastes uniformis	Treated as a subspecies of Hylexetastes uniformis based on genetic analysis supported by similarity of plumage and vocalizations (Azuaje‐Rodríguez et al. 2020; SACC 897).
AL 13.2	Tschudi's Woodcreeper	Xiphorhynchus chunchotambo	Ocellated Woodcreeper	Xiphorhynchus ocellatus	Tschudi's Woodcreeper Xiphorhynchus chunchotambo was split from X. ocellatus in v 1.6 (Aleixo 2002; Marantz et al. 2003). But the deep mtDNA divergence which contributed to the decision to retain the split of X. chunchotambo is equally shared by ssp. beauperthuysii which was not split at the time (Sousa-Neves et al. 2013). Tentatively relump with X. ocellatus following SACC 600 for lack of clarity regarding the considerable vocal and genetic variation within this complex.
AS 13.2	Tapajos Scythebill, Xingu Scythebill	Campylorhamphus probatus, Campylorhamphus multostriatus	Curve-billed Scythebill	Campylorhamphus procurvoides	Tapajos Scythebill Campylorhamphus probatus (including cardosoi) and Xingu Scythebill Campylorhamphus multostriatus are split from Curve-billed Scythebill C. procurvoides based on phylogenetic analysis and vocalizations (Aleixo et al. 2013; Sousa-Neves et al. 2013; HBW/BirdLife).
AS 13.2	Plain Xenops	Xenops genibarbis	White-throated Xenops	Xenops minutus	Polytypic Xenops genibarbis (ten subspecies) is a proposed split from monotypic Xenops minutus based on morphological, vocal, and genetic differences (Harvey & Brumfield 2015, del Hoyo & Collar 2016; HBW/BirdLife). This polytypic species, with the largest range, retains the English name Plain Xenops.
AL 13.2	Puna Canastero	Asthenes sclateri	Streak-backed Canastero	Asthenes wyatti	Puna Canastero Asthenes sclateri is lumped with Streak-backed Canastero Asthenes wyatti. Morphological and reported vocal differences are slight and there is a zone of intergradation in se Peru and nw Bolivia (del Hoyo & Collar 2016; HBW/BirdLife)
AS 13.2	Fawn-throated Foliage-gleaner	Automolus cervinigularis	Ochre-throated (Buff-throated) Foliage-gleaner	Automolus ochrolaemus	Fawn-throated Foliage-gleaner Automolus cervinigularis (including hypophaeus) is split from Ochre-throated (Buff-throated) Foliage-gleaner A. ochrolaemus based on genetic analysis (Smith et al. 2014; Schultz et al. 2017) and vocal differences.
AS 13.2	Vilcabamba Spinetail	Cranioleuca weskei	Marcapata Spinetail	Cranioleuca marcapatae	Vilcabamba Spinetail Cranioleuca weskei is split from Cranioleuca marcapatae based on differences in plumage and, perhaps, vocalizations (del Hoyo & Collar 2016; HBW/BirdLife).
AS 13.2	Araguaia Spinetail	Synallaxis simoni	White-lored Spinetail	Synallaxis albilora	Araguaia Spinetail Synallaxis simoni is split from White-lored Spinetail S. albilora on the basis of differences in plumage and vocalizations (Boesman 2016; HBW/BirdLife).
AS 13.2	Western Olivaceous Flatbill	Rhynchocyclus aequinoctialis	(Eastern) Olivaceous Flatbill	Rhynchocyclus olivaceus	Western Olivaceous Flatbill Rhynchocyclus aequinoctialis (including bardus, mirus, jelambianus, tamborensis, flavus and cryptus) is split from (Eastern) Olivaceous Flatbill R. olivaceus on the basis of bioacoustics and sympatry in western Amazonia supported by genetic analysis (HBW/BirdLife; Simões et al. 2021).
AL 13.2	Cordilleran Flycatcher	Empidonax occidentalis	Pacific-slope Flycatcher	Empidonax difficilis	Pacific-slope Flycatcher Empidonax difficilis and Cordilleran Flycatcher E. occidentalis (including hellmayri) are re-lumped, restoring the original name Western Flycatcher Empidonax difficilis to the recombined species. The two forms demonstrate extensive hybridization in a broad contact zone in w Canada and the northern western USA and lack consistent vocal, genomic and morphological differences (Rush et al. 2009; lack et al. 2019; Hopping 2022; Chesser et al. 2023).
AS 13.2	Cryptic Becard	Pachyramphus salvini	Black-and-white Becard	Pachyramphus albogriseus	Cryptic Becard Pachyramphus salvini is split from Black-and-white Becard P. albogriseus on the basis of phylogenetics, morphology and vocalizatons. Monotypic. Includes guayaquilensis (Musher et al. 2023; SACC 955).
AS 13.2	Short-tailed Drongo	Dicrurus striatus	Balicassiao	Dicrurus balicassius	Short-tailed Drongo Dicrurus striatus (including samarensis) is a proposed split from Balicassiao D. balicassius on the basis of distinctive morphology despite shallow genetic divergence in the phylogenic study of Shakya et al. (2020). (Allen 2020; HBW/BirdLife).
AL 13.2	Fanti Drongo	Dicrurus atactus	Velvet-mantled Drongo	Dicrurus modestus	Fanti Drongo D. atactus was previously split from Velvet-mantled Drongo D. modestus complex following Fuchs et al. (2018). But the genetic divergence is shallow and Dicrurus atactus intergrades with D. modestus coracinus in sw Nigeria and Cameroon (Rocamora & Yeatman-Berthelot 2009). Treat as a subspecies of Velvet-mantled Drongo (del Hoyo & Collar 2016; BirdLife).
AL 13.2	Glossy-backed Drongo	Dicrurus divaricatus	Fork-tailed Drongo	Dicrurus adsimilis	Glossy-backed Drongo D. divaricatus (including lugubris) was formerly split from the Fork-tailed Drongo species complex (D. adsimilis s.l.) based on slight differences in plumage and molecular analysis by Fuchs et al. (2017) which showed a closer relationship with forest-dwelling D. m. atactus. But this is less clear in a subsequent paper by Fuchs et al. (2018) which associates divaricatus, at least in part, with the other African savanna species which accords with ecological and other observations. Further, D. d. divaricatus and D. a. fugax appear to intergrade in n Uganda and Kenya (e.g. Zimmerman et al. 1996; del Hoyo & Collar 2016). Relump Dicrurus divaricatus with Dicrurus adsimilis following del Hoyo & Collar 2016 and BirdLife.
AL 13.2	Western Square-tailed Drongo	Dicrurus occidentalis	Sharpe's Drongo	Dicrurus sharpei	Western Square-tailed Drongo Dicrurus occidentalis was formerly split from Dicrurus ludwigii as a new species (9.1) based on genetic evidence which place it sister to D. sharpei (Fuchs et al., 2018). Subsequently, D. occidentalis has been shown to show no significant morphological or vocal differences from Dicrurus sharpei, despite its genetic divergence, and is lumped with that species (Fishpool et al. 2021).
AS 13.2	Black-and-crimson Oriole	Oriolus consanguineus	Javan Oriole	Oriolus cruentus	Polytypic Black-and-crimson Oriole Oriolus consanguineus (including malayanus and vulneratus) is a split from monotypic Oriolus cruentus (renamed Javan Oriole) based on deep genetic diverence and vocal differences (Jønsson et al. 2019; Eaton et al. 2021; HBW/BirdLife).
AS 13.2	Sangihe Golden Bulbul, Togian Golden Bulbul, Banggai Golden Bulbul, Sula Golden Bulbul, Halmahera Golden Bulbul, Obi Golden Bulbul	Hypsipetes platenae, Hypsipetes aureus, Hypsipetes harterti, Hypsipetes longirostris, Hypsipetes chloris, Hypsipetes lucasi	Northern Golden Bulbul	Hypsipetes longirostris s.l.	The Northern Golden Bulbul complex Hypsipetes longirostris s.l. is split into six species on the basis of differences in plumage and vocalizations (Collar et al. 2013; Eaton et al. 2021; del Hoyo & Collar 2016; HBW/BirdLife).
AS 13.2	Pale-eyed Bulbul	Pycnonotus davisoni	Stripe-throated Bulbul	Pycnonotus finlaysoni	Pale-eyed Bulbul Pycnonotus davisoni is split from Stripe-throated Bulbul P. finlaysoni based on differences in morphology and sympatry in se Myanmar (Tenasserim) (HBW/BirdLife; Limparungpatthanakij 2022).
AL 13.2	Desert Whitethroat, Hume's Whitethroat	Curruca minula, Curruca althaea	Lesser Whitethroat	Curruca curruca	Tentatively lump Desert Whitethroat Curruca minula (including margelanica) and Hume's Whitethroat C. althaea with Lesser Whitethroat C. curruca following Clements, HBW/BirdLife, Dickinson & Christidis (2014), and Shirihai & Svensson (2018) pending more comprehensive genomic and vocal analyses.
AL 13.2	Itombwe Flycatcher	Muscicapa itombwensis	Chapin's Flycatcher	Muscicapa lendu	Treat Itombwe Flycatcher as a subspecies of Chapin's Flycatcher M. lendu following other major world bird lists (Dickinson & Christidis 2014; HBW/BirdLife; Clements).
AL 13.2	Greyish-crowned Leafbird	Chloropsis lazulina	Orange-bellied Leafbird	Chloropsis hardwickii	Greyish-crowned Leafbird Chloropsis lazulina (including melliana) was previously split from C. hardwickii based on phylogenetic divergence and plumage differences (Moltesen et al. 2012; HBW/BLI). However, the split of C. lazulina may have been premature, as there appears to be a broad intergradation zone between the two taxa. Relump with Chloropsis hardwickii pending further studies.
AS 13.2	New Hanover Mannikin	Lonchura nigerrima	Mottled (Hunstein's) Mannikin	Lonchura hunsteini	New Hanover Mannikin Lonchura nigerrima is split from parapatric L. hunsteini on the basis of differences comparable to other parapatric and/or sympatric Lonchura species in the region (Wolters 1979; Sibley & Monroe 1990; Clements).
AS 12.1	African Chaffinch, Azores Chaffinch, Madeira Chaffinch, Canary Islands Chaffinch	Fringilla spodiogenys, Fringilla moreletti, Fringilla maderensis, Fringilla canariensis	Eurasian (Common) Chaffinch	Fringilla coelebs	Common Chaffinch Fringilla coelebs is split into five species based on genomic and morphological differences (Recuerda et al. 2021). English name "Eurasian" Chaffinch for F. coelebs s.s. is provisional.
AS 13.2	Puerto Rican Euphonia, Lesser Antillean Euphonia	Chlorophonia sclateri, Chlorophonia flavifrons	Hispaniolan (Antillean) Euphonia	Chlorophonia musica	Antillean Euphonia complex (Chlorophonia musica s.l.) is split into three species based on significant differences in plumage (HBW/BLI; Chesser et al. 2023).
AL 13.2	Vincent's Bunting	Emberiza vincenti	Cape Bunting	Emberiza capensis	Vincent's Bunting Emberiza vincenti is a relict split from Gill & Wright (2006) based on Fry & Keith (2004). But it is generally regarded as the terminal form in a cline of subspecies with increasingly dark underparts within Emberiza capensis (Ryan 2018). Song and call notes of vincenti are identical to those of other subspecies (Dowsett-Lemaire & Dowsett 2006). Treat as a subspecies of E. capensis.
PL 13.2	Scarlet-rumped Cacique	Cacicus microrhynchus	Subtropical Cacique	Cacicus uropygialis	Cacicus microrhynchus is currently split from C. uropygialis based on differences in vocalizations and morphology (Jaramillo & Burke 1999; Ridgely & Greenfield 2001; Hilty 2003). But the split has been closely rejected in SACC 73, NACC 2023-A-8 and by WGAC due to insufficient supporting information. Currently under re-evaluation in SACC 946.
AL 13.2	Northern Mountain Cacique	Cacicus leucoramphus	(Southern) Mountain Cacique	Cacicus chrysonotus	Northern Mountain Cacique Cacicus leucoramphus (including peruvianus) was formerly split from Southern Mountain Cacique C. chrysonotus (Jaramillo & Burke 1999; Ridgely & Greenfield 2001; Hilty 2003) based in morphologic differences and evidence of deep genetic divergence (Powell et al. 2014). But the split is rejected by lack of sampling in the contact zone (SACC 616) and by evidence of phenotypic introgression in Ayacucho, Peru (Hosner et al. 2015).
AL 13.2	Ochre Oriole	Icterus fuertesi	Orchard Oriole	Icterus spurius	Ochre Oriole Icterus fuertesi was split from I. spurius primarily based on differences in plumage, migratory behavior, and mt DNA divergence (Baker et al. 2003; Kiere et al. 2007). But the mt DNA divergence is minor in those studies, and vocalizations overlap (Hagemeyer et al. 2012; Sturge et al. 2016a). Further, mtDNA and nuclear DNA analysis failed to show reciprocal monophyly or population structure, respectively (Sturge et al. 2016b).
AS 13.2	Lemon-rumped Tanager	Ramphocelus icteronotus	Flame-rumped Tanager	Ramphocelus flammigerus	Limited hybridization between Ramphocelus icteronotus and R. flammigerus is the basis for lumping them (Isler & Isler 1987; Ridgely & Tudor 1989; Sibley & Monroe 1990). Hybrid zone considered narrow and moving (Ridgely & Greenfield 2001; Morales-Rozo et al. 2015). SACC proposal to split the two species did not pass, as there is little genetic differentiation, and the hybridization zone is broader than previously believed. Treating the two taxa as conspecific aligns with Dickinson & Christidis (2014), Clements, SACC 948 and NACC 2023-A-7.
AS 13.2	Grand Cayman Bullfinch	Melopyrrha taylori	Cuban Bullfinch	Melopyrrha nigra	Grand Cayman Bullfinch Melopyrrha taylori is split from Cuban Bullfinch M. nigra based on differences in morphology and vocalizations (Garrido et al. 2014, del Hoyo & Collar 2016; HBW/BirdLife).
NEW	Ibera Seedeater	Sporophila iberaensis			Sp. nov.: Di Giacomo & Kopuchian, 2016. Recognition as specifically distinct supported by distinctive plumage and vocalizations, unique breeding habitat, and genomic data (Galluppi-Selich et al. 2018; Browne et al. 2021; Turbek et al. 2021; SACC 953; HBW/BirdLife).
AS 13.2	Streaked Dacnis	Xenodacnis petersi	Tit-like Dacnis	Xenodacnis parina	Streaked Dacnis Xenodacnis petersi (including bella) is split from X. parina based on morphology and voice (del Hoyo & Collar 2016; Boesman 2016; Hilty et al. 2022).
AS 13.2	Carriker's Mountain Tanager, Streak-crowned Mountain Tanager	Dubusia carrikeri, Dubusia stictocephala	Buff-breasted Mountain Tanager	Dubusia taeniata	Carriker's Mountain Tanager Dubusia carrikeri and Streak-crowned Mountain Tanager Dubusia stictocephala are splt from D. taeniata on the basis of differences in plumage and vocalizations (Boesman 2016; del Hoyo & Collar 2016; HBW/BirdLife).

Proposed Splits/Lumps IOC Version 13.1

Number	English Name	Scientific Name	Parent	Parent (sci)	Proposal
AS 13.1	White-throated Piping Guan	Pipile grayi	Blue-throated Piping Guan	Pipile cumanensis	White-throated Piping Guan Pipile grayi is a proposed split from Blue-throated Piping Guan P. cumanensis on the basis of differences plumage, the color and shape of the wattle, and limited hybridization in their zones of contact in se Peru (del Hoyo & Collar 2014; HBW/BirdLife. See Vaurie 1967).
AS 13.1	Western Crested Guineafowl, Southern Crested Guineafowl	Guttera verreauxi, Guttera edouardi	(Eastern) Crested Guineafowl	Guttera pucherani	Western Crested Guineafowl Guttera verreauxi (including sclateri) and Southern Crested Guineafowl Guttera edouardi (including barbata) are split from G. pucherani (s.s and s.l.) on the basis of differences in color of facial and neck skin, morphology of the hood, and vocalizations (del Hoyo & Collar 2014; HBW/BirdLife.
AS 13.1	Bornean Crestless Fireback	Lophura pyronota	(Malayan) Crestless Fireback	Lophura erythrophthalma	Bornean Crestless Fireback Lophura pyronota is a proposed split from Malayan Crestless Fireback L. erythrophthalma based on substantial differences in plumage (del Hoyo & Collar 2014; Eaton et al. 2021; HBW/BirdLife).
AS 13.1	Malayan Crested Fireback	Lophura rufa	(Bornean) Crested Fireback	Lophura ignita	Malayan Crested Fireback Lophura rufa is a proposed split from Bornean Crested Fireback L. ignita (including nobilis) based on substantial differences in plumage (del Hoyo & Collar 2014; Eaton et al. 2021; HBW/BirdLife). Treat as monotypic. Includes "macartneyi" of se Sumatra regarded as a hybrid swarm between ignita and rufa (Collar & Prŷs-Jones 2014; Eaton et al. 2021; McGowan et al. 2022; HBW/BirdLife).
AS 13.1	Sabah Partridge	Tropicoperdix graydoni	Chestnut-necklaced Partridge	Tropicoperdix charltonii	Sabah Partridge Tropicoperdix graydoni is a proposed split from Tropicoperdix charltonii (including atjenensis) based on significant differences in plumage and soft part coloration (del Hoyo & Collar 2014, Eaton et al. 2021; HBW/BirdLife).
AS 13.1	Whyte's Francolin	Scleroptila whytei	Shelley's Francolin	Scleroptila shelleyi	Whyte's Francolin Scleroptila whytei is a proposed split from Shelley's Francolin Scleroptila shelleyi based on significant differences in plumage and mtDNA divergence (del Hoyo & Collar 2014; Mandiwana-Neudani et al. 2019b; HBW/BirdLife).
AL 13.1	Black-fronted Spurfowl	Pternistis atrifrons	Chestnut-naped Spurfowl	Pternistis castaneicollis	Black-fronted Spurfowl was originally split from Chestnut-naped Spurfowl P. castaneicollis (Töpfer et al. 2014), but it is treated as ssp. of P. castaneicollis by Redman et al. (2011), Mandiwana-Newdani et al. (2019), del Hoyo & Collar (2014) and HBW/BirdLife absent strong DNA divergence, similar vocalizations and minor differences in plumage.
AL 13.1	Black-shouldered Nightjar	Caprimulgus nigriscapularis	Fiery-necked Nightjar	Caprimulgus pectoralis	Black-shouldered Nightjar Caprimulgus nigriscapularis is treated as the northern subspecies of C. pectoralis based on similar vocalizations and lack of significant morphological differences (Louette 1990; Dowsett & Lemaire 1993; Zimmerman et al. 1996; Jackson 2013; Dickinson & Remsen 2013; HBW/BirdLife). Contra Fry et al. (1988); Cleere (1995, 1999); and Holyoak (2001).
AS 13.1	Green Inca	Coeligena conradii	Collared Inca	Coeligena torquata	Green Inca Coeligena conradii is a proposed split from Collared Inca C. torquata based on differences in plumage (del Hoyo & Collar 2014; Donegan et al. 2015; HBW/BLI).
AS 13.1	Gould's Inca	Coeligena inca	Collared Inca	Coeligena torquata	Gould's Inca Coeligena inca (including omissa) is a proposed split from Collared Inca C. torquata based on differences in plumage and genetic differentiation (Schuchmann 1999; del Hoyo & Collar 2014; McGuire et al. 2014; HBW/BLI).
AS 13.1	Perija Starfrontlet	Coeligena consita	Golden-bellied Starfrontlet	Coeligena bonapartei	Perija Starfrontlet Coeligena consita is a proposed split from C. bonapartei based on differences in plumage (del Hoyo & Collar 2014; Donegan et al. 2015; HBW/BirdLife).
AS 13.1	Golden-tailed Starfrontlet	Coeligena eos	Golden-bellied Starfrontlet	Coeligena bonapartei	Golden-tailed Starfrontlet Coeligena eos is a proposed split from C. bonapartei based on differences in plumage (Schuchmann 1999; del Hoyo & Collar 2014; Donegan et al. 2015; HBW/BirdLife).
AS 13.1	Copper-tailed Hummingbird	Saucerottia cupreicauda	Green-bellied Hummingbird	Saucerottia viridigaster	Copper-tailed Hummingbird Saucerottia cupreicauda (including duidae, laireti, and pacaraimae) is a proposed split from Green-bellied Hummingbird Saucerottia viridigaster on the basis its distinctive coloration of the rump, uppertail coverts and retrices (del Hoyo & Collar 2014; HBW/BirdLife).
PS 13.1	Crismson-crested Turaco	Menelikornis donaldsoni	White-cheeked Turaco	Menelikornis leucotis	M. donaldsoni Crismson-crested Turaco is a proposed split from M. leucotis based on syntopy and differences in plumage which complement earler phylogenetic studies (Gedeon et al. 2022; Perktaş et al. 2020).
AS 13.1	Enggano Imperial Pigeon	Ducula oenothorax	Green Imperial Pigeon	Ducula aenea	Enggano Imperial Pigeon Ducula oenothorax is split from Green Imperial Pigeon D. aenea on the basis of pronounced differences in plumage (Eaton et al. 2021; del Hoyo & Collar 2014; HBW/BLI).
AS 13.1	African Woolly-necked Stork	Ciconia microscelis	(Asian) Woolly-necked Stork	Ciconia episcopus	Widely allopatric African Woolly-necked Stork Ciconia microscelis is split from Asian Woolly-necked Stork C. episcopus based on plumage and other morpholoigcal differences (del Hoyo & Collar 2014; HBW/BLI).
PL 13.1	Cape Verde Buzzard	Buteo bannermani	Common Buzzard	Buteo buteo	Cape Verde Buzzard Buteo bannermani is split from Common/Eurasian Buzzard (Clouet & Wink 2000), but its taxonomic status of Cape Verde Buzzard is unsettled. Limited mtDNA analyses suggest close relationship with Socotra Buzzard (Clouet & Wink 2000; Kruckenhauser et al. 2004). But their relationships to other Buteo species in the buteo/rufinus/oreophilus complex are contradictory between studies. Proposal to treat bannermani as a subspecies of Buteo buteo based on plumage characteristics (del Hoyo & Collar 2014; Clements 2022; HBW/BirdLife) is under consideration.
NEW	Principe Scops Owl	Otus bikegila			Sp. nov.: Melo et al. 2022. Principe Scops Owl Otus bikegila is a newly described species based on morphometrics, plumage, bioacoustics and molecular analysis.
PS 13.1	Northern Fish Owl	Ketupa doerriesi	Blakiston's Fish Owl	Ketupa blakistoni	Ketupa doerriesi Northern Fish Owl is a proposed split from Ketupa blakistoni based on deep mitochondrial genome divergence, significant bioacoustic differences and differences in plumage (Omote et al. 2018; Movin et al. 2022).
AS 13.1	Malayan Blue-banded Kingfisher	Alcedo peninsulae	(Javan) Blue-banded Kingfisher	Alcedo euryzona	Malayan Blue-banded Kingfisher Alcedo peninsulae is split from Javan Blue-banded Kingfisher A. euryzona based on distinct differences in plumage. The female plumages are particularly dissimilar (del Hoyo & Collar 2014; HBW/BirdLife. See Eaton et al. 2021).
AS 13.1	Sangihe Dwarf Kingfisher	Ceyx sangirensis	Sulawesi Dwarf Kingfisher	Ceyx fallax	The critically endangered Sangihe Dwarf Kingfisher Ceyx sangirensis is split from Ceyx fallax based on plumage and other morphological differences (del Hoyo & Collar 2014; HBW/BirdLife. See Eaton et al. 2021).
AL 13.1	Malaita Dwarf Kingfisher	Ceyx malaitae	Guadalcanal Dwarf Kingfisher	Ceyx nigromaxilla	Ceyx malaitae was previously treated as a separate monophyletic species, but it is more recently lumped with Ceyx nigromaxilla (del Hoyo & Collar 2014; HBW/BirdLife; Clements 2022). Despite the non-monophyly shown in the molecular study by Andersen et al. (2013), the two taxa demonstrate only minimal differences in plumage and occupy neighboring islands. The molecular study was based on only a single specimen of C. malaitae and non-monophyly requires confirmation.
AS 13.1	Northern Red-fronted Tinkerbird	Pogoniulus uropygialis	(Southern) Red-fronted Tinkerbird	Pogoniulus pusillus	Northern Red-fronted Tinkerbird Pogoniulus uropygialis (including affinis) is split from Southern Red-fronted Tinkerbird P. pusillus based on whole genome data, significant divergence in mtDNA, and phenotypic differences (Kirschel et al. 2021).
AL 13.1	Thick-billed Honeyguide	Indicator conirostris	Lesser Honeyguide	Indicator minor	Thick-billed Honeyguide Indicator conirostris (including ussheri) is lumped with Lesser Honeyguide I. minor. The two species have identical voices, virtually identical plumage, and their presumed ecological separation has been questioned (del Hoyo & Collar 2014; HBW/BirdLife).
AS 13.1	Sumba Eclectus, Tanimbar Eclectus, Papuan Eclectus	Eclectus cornelia, Eclectus riedeli, Eclectus polychloros	Moluccan Eclectus (Eclectus Parrot)	Eclectus roratus	Sumba Eclectus E. cornelia, Tanimbar Eclectus E. riedeli and Papuan Eclectus E. polychloros (including solomonensis and macgillivrayi) are accepted splits from Moluccan Eclectus (Eclectus Parrot) Eclectus roratus (including vosmaeri and, tentatively, the extinct westermani) based on differences in especially female plumage and, in some instances, size, coupled with supporting molecular data (HBW/BirdLife; Braun et al. 2017).
ADD	†† Oceanic Eclectus	Eclectus infectus			Known primarily from late Holocene skeletal material and one crude contempory drawing of a living bird rendered on Vava'u, Tonga in 1793 (Steadman, 2006; Olson, 2006; HBW/BirdLife).
AS 13.1	Dusky-cheeked Fig Parrot	Cyclopsitta melanogenia	Orange-breasted Fig Parrot	Cyclopsitta gulielmitertii s.l.	Dusky-cheeked Fig Parrot Cyclopsitta melanogenia (including ssp. suavissima, fuscifrons) is a proposed split from the Orange-breasted Fig Parrot complex Cyclopsitta gulielmitertii s.l. based on significant differences in plumage and size (Schnitker 2007; Dickinson & Remsen 2013; del Hoyo & Collar 2016; HBW/BirdLife).
AS 13.1	Black-fronted Fig Parrot	Cyclopsitta nigrifrons	Orange-breasted Fig Parrot	Cyclopsitta gulielmitertii s.l.	Black-fronted Fig Parrot Cyclopsitta nigrifrons (including amabilis) is a proposed split from the Orange-breasted Fig Parrot complex Cyclopsitta gulielmitertii s.l. based on significant differences in plumage and size (Schnitker 2007, Dickinson & Remsen 2013).
PS 13.1	Coxen's Fig Parrot	Cyclopsitta coxeni	Double-eyed Fig Parrot	Cyclopsitta diophthalma	Coxen's Fig Parrot Cyclopsitta coxeni is a proposed split from Double-eyed Fig Parrot C. diophthalma on the basis of differences in plumage and size (del Hoyo & Collar 2016; HBW/BirdLife).
AS 13.1	Black-billed Hanging Parrot	Loriculus bonapartei	Philippine Hanging Parrot	Loriculus philippensis	Black-billed Hanging Parrot Loriculus bonapartei is split from Philippine Hanging Parrot L. philippensis on the basis of differeces in bill and leg color, some differences in plumage, and lack of sexual dimophism (Allen 2020).
AS 13.1	Choco Manakin	Cryptopipo litae	Green Manakin	Cryptopipo holochlora	Choco Manakin Cryptopipo litae (including suffusa) is split from Green Manakin C. holochlora on the basis of differences in plumage and vocalizations (Ridgely & Tudor 1994; Ridgely & Greenfield 2001; del Hoyo & Collar 2016; Boesman 2016; HBW/BirdLife).
AS 13.1	Black-breasted Gnateater	Conopophaga snethlageae	Chestnut-belted Gnateater	Conopophaga aurita	Black-breasted Gnateater Conopophaga snethlageae (including pallida) is split from Chestnut-belted Gnateater C. aurita based on differences in plumage, vocalizations, and deep genetic divergence (Whitney 2003, Batalha-Filo et al. 2014, Boesman 2016, del Hoyo & Collar 2016; HBW/BirdLife).
AS 13.1	Olive-striped Flycatcher	Mionectes galbinus	Olive-streaked Flycatcher	Mionectes olivaceus	Mionectes galbinus (including hederaceus, venezuelensis and fasciaticollis) is split from monotypic M. olivaceus primarily on significant differences in song, bill structure and minor plumage differences (del Hoyo & Collar 2016; Boesman 2016; HBW/BirdLife). The English name Olive-striped Flycatcher is retained by the polytypic split form, and M. olivaceus becomes Olive-streaked Flycatcher. The songs in polytypic M. galbinus are quite variable. Further cryptic species may be involved (see Fitzpatrick et al. 2020).
AS 13.1	Northern Mouse-colored Tyrannulet	Nesotriccus incomtus	(Southern) Mouse-colored Tyrannulet	Nesotriccus murinus	Northern Mouse-colored Tyrannulet Nesotriccus incomtus (including eremonomus) is split from (Southern) Mouse-colored Tyrannulet N. murinus on the basis of phylogenetic analysis by resolving the paraphyly otherwise imposed by N. ridgwayi which is embedded in the N. murinus complex; and subtle differences in plumage (Zucker et al. 2016).
AS 13.1	Maranon Tyrannulet	Nesotriccus maranonicus	Tumbesian Tyrannulet	Nesotriccus tumbezanus	Maranon Tyrannulet Nesotriccus maranonicus is split from Tumbesian Tyrannulet N. tumbezanus based on phylogenetic analysis, plumage and vocalzations (Zucker et al. 2016).
AS 13.1	Choco Elaenia; Amazonian Elaenia	Myiopagis parambae; Myiopagis cinerea	(Atlantic) Grey Elaenia	Myiopagis caniceps	Choco Elaenia Myiopagis parambae (including absita) and Amazonian Elaenia Myiopagis cinerea are splits from Grey-headed (Grey) Elaenia Myiopagis caniceps on the basis of differences in morphology and plumage supported by phylogenetic analysis (Rheindt et al. 2009; Cuervo et al. 2014; del Hoyo & Collar 2016; HBW/BirdLife).
AL 13.1	White-bellied Tyrannulet	Serpophaga munda	White-crested Tyrannulet	Serpophaga subcristata	White-bellied Tyrannulet Serpophaga munda is lumped with White-crested Tyrannulet S. subcristata based on essentially identical vocalizations despite differences in plumage (del Hoyo & Collar 2014; HBW/BirdLife).
AS 13.1	Bahia Wagtail-Tyrant	Stigmatura bahiae	Lesser Wagtail-Tyrant	Stigmatura napensis	Bahia Wagtail-Tyrant Stigmatura bahiae is split from Lesser Wagtail-Tyrant Stigmatura napensis based on paraphyly relative to Stigmatura budytoides supported by differences in plumage and voice (Harvey et al. 2020; del Hoyo & Collar 2016; HBW/BirdLife).
AS 13.1	Mouse-grey Flycatcher, Rufescent Flycatcher	Myiophobus crypterythrus, Myiophobus rufescens	Bran-colored Flycatcher	Myiophobus fasciatus	Mouse-grey Flycatcher Myiophobus crypterythrus and Rufescent Flycatcher Myiophobus rufescens are splits from Bran-colored Flycatcher M. fasciatus based on significant differences in plumage and vocalizations (del Hoyo & Collar 2016; HBW/BirdLife).
AS 13.1	Northern Tropical Pewee	Contopus bogotensis	(Southern) Tropical Pewee	Contopus cinereus	Northern Tropical Pewee Contopus bogotensis (including brachytarsus, rhizophorus, aithalodes and surinamensis) is split from (Southern) Tropical Pewee Contopus cinereus (including pallescens) based on differences in plumage and vocalizations which are further supported by phylogenetic analysis (del Hoyo & Collar 2016; HBW/BirdLife; Harvey et al. 2020).
AS 13.1	Rufous-browed Chat-Tyrant	Ochthoeca superciliosa	Brown-backed Chat-Tyrant	Ochthoeca fumicolor	Rufous-browed Chat-Tyrant Ochthoeca superciliosa is split from Brown-backed Chat-Tyrant Ochthoeca fumicolor based on striking differences in plumage (del Hoyo & Collar 2016; HBW/BirdLife; see Ridgely & Tudor 1994).
AS 13.1	Malawi Batis	Batis dimorpha	Cape Batis	Batis capensis	Malawi Batis Batis dimorpha (including sola) is split from Cape Batis Batis capensis on the basis of differences in plumage (del Hoyo & Collar 2016; HBW/BirdLife). Reported sympatry in s Malawi (Dowsett in litt).
AS 13.1	Northern Shriketit, Western Shriketit	Falcunculus whitei, Falcunculus leucogaster	Eastern (Crested) Shriketit	Falcunculus frontatus	Northern Shriketit Falcunculus whitei and Western Shriketit F. leucogaster are proposed splits from Eastern (Crested) Shriketit F. frontatus based on plumage and vocalizations. (Schodde & Mason 1999; del Hoyo & Collar 2016; HBW/BirdLife).
AS 13.1	Comoros Blue Vanga	Cyanolanius comorensis	(Madagascar) Blue Vanga	Cyanolanius madagascarinus	Comoros Blue Vanga Cyanolanius comorensis (including bensoni) is split from (Madagascar) Blue Vanga C. madagascarinus on the basis of differences in plumage, size and bill length (del Hoyo & Collar 2016; HBW/BirdLife).
AL 13.1	Himalayan Shrike-babbler, Dalat Shrike-babbler	Pteruthius ripleyi, Pteruthius annamensis	White-browed (Blyth's) Shrike-babbler	Pteruthius aeralatus	A recent reassessment of the vocalizations of the White-browed Shrike-babbler complex by Boesman et al (2016) of the further suggests that the original split of the mainland taxa of White-browed Shrike-babbler may have been premature. Lump Pteruthius ripleyi and P. annamensis with P. aeralatus following del Hoyo & Collar (2016) and HBW/BirdLife.
PL 13.1	Beesley's Lark	Chersomanes beesleyi	Spike-heeled Lark	Chersomanes albofasciata	Beesley's Lark Chersomanes beesleyi is proposed to be re-lumped with Spike-heeled Lark C. albofasciata based on a reconsideration of the features that were originally cited to justify the split. Despite deep genetic divergence based on mtDNA evidence (Alström et al. 2013), differences in plumage may be clinal or inconsistent and behavioral differences have been questioned. Further, a population of Spike-heeled Lark with variable plumage and an intermediate range in se DR Congo has not been properly assessed or classified (Donald & Collar 2011; del Hoyo & Collar 2016; Louette & Hasson 2017; Ryan et al. 2022; Clements 2022; HBW/BirdLife).
PL 13.1	Benguela Long-billed Lark	Certhilauda benguelensis	Karoo Long-billed Lark	Certhilauda subcoronata	Benguela Long-billed Lark Certhilauda benguelensis is a proposed lump with Karoo Long-billed Lark C. subcoronata based on very similar vocalizations and plumage despite distinct genetic divergence (del Hoyo & Collar 2016; Ryan & Kirwan 2022; Clements 2022; HBW/BirdLife).
PL 13.1	Agulhas Long-billed Lark	Certhilauda brevirostris	Cape Long-billed Lark	Certhilauda curvirostris	Agulhas Long-billed Lark Certhilauda brevirostris is a proposed lump with Cape Long-billed Lark C. curvirostris based on shallow genetic divergence and essentially identical vocalizatons (Alström et al. 2013; del Hoyo & Collar 2016; HBW/BLI; Clements 2022).
PL 13.1	Foxy Lark	Calendulauda alopex	Fawn-colored Lark	Calendulauda africanoides	Foxy Lark Calendulauda alopex is a proposed lump with Fawn-colored Lark C. africanoides based on shallow genetic divergence (Alström et al. 2013) and only slight differences in morphology (Ryan 2022; Clements 2022; HBW/BirdLife).
PL 13.1	Barlow's Lark	Calendulauda barlowi	Dune Lark	Calendulauda erythrochlamys	Barlow's Lark Calendulauda barlowi (including patae and cavei) is a proposed lump with Dune Lark C. erythrochlamys on the basis of shallow genetic divergence and essentially identical vocalizations and size (Alström et al. 2013; del Hoyo & Collar 2016; Ryan & Kirwan 2022; HBW/BirdLife).
PS 13.1	Sharpe's Lark	Mirafra sharpii	Rufous-naped Lark	Mirafra africana	Monotypic Sharpe's Lark Mirafra sharpii is a proposed split from Rufous-naped Lark M. africana on the basis of differences in plumage and morphology supported by unpublished genetic data (Redman et al. 2009; del Hoyo & Collar 2016; Alström & Donald 2022; HBW/BirdLife).
AL 13.1	Singing Bushlark	Mirafra cantillans	Horsfield's Bush Lark	Mirafra javanica	Singing Bush Lark Mirafra cantillans (including marginata, chadensis, and simplex) is a lumped with Horsfield's Bush Lark C. javanica on the basis of shallow genetic divergence, similar vocalizations, and convergent variation in plumage (Alström et al. 2013, del Hoyo & Collar 2016; Alström & Ryan. 2022; HBW/BirdLife).
AL 13.1	Sunda Bush Warbler	Horornis vulcanius	Aberrant Bush Warbler	Horornis flavolivaceus	Sunda Bush Warbler Horornis vulcanius (including sepiarius, flaviventris, kolichisi, everetti, banksi, oreophilus, and palawanus) is lumped with Aberrant Bush Warbler H. flavolivaceus in face of conflicting interpretation of genetic data (Olsson et al. 2006, Alström et al. 2011). Recognize a polytypic Aberrant Bush Warbler following del Hoyo & Collar (2016) and HBW/Birdlife pending further analysis of vocalizations and genomic data.
AS 13.1	Rufous-crowned Prinia	Prinia khasiana	Black-throated Prinia	Prinia atrogularis	Rufous-crowned Prinia Prinia khasiana is split from Black-throated Prinia P. atrogularis on the basis of marked differences in plumage, distinctive vocalizations, and genetic divergence (Rasmussen & Anderton 2012; del Hoyo & Collar 2016; Groot 2021; HBW/Birdlife).
NEW	Wangi-wangi White-eye	Zosterops paruhbesar			Wangi-wangi White-eye is a newly described, single island endemic species: Irham et al. 2022, based on its significantly larger bill and body size than other regional white-eyes, and its genetic distinctiveness (O'Connell et al. 2019; Irham et al. 2022).
AS 13.1	Brown-crowned Scimitar Babbler	Pomatorhinus phayrei	Coral-billed Scimitar Babbler	Pomatorhinus ferruginosus	Polytypic Brown-crowned Scimitar Babbler Pomatorhinus phayrei (five subspecies) is split from monotypic Coral-billed Scimitar-Babbler P. ferruginosus on the basis of plumage and vocalizations (Rasmussen & Anderton 2012; del Hoyo & Collar 2016; HBW/BirdLife).
AS 13.1	Tenggara Hill Myna	Gracula venerata	Common Hill Myna	Gracula religiosa	Tenggara Hill Myna Gracula venerata is split from Common Hill Myna G. religiosa based on differences in the color the plumage gloss, the structure of the wattle and other areas of bare skin of the head, and very different vocalizations (del Hoyo & Collar 2016; Eaton et al. 2021; HBW/BirdLife).
AS 13.1	Vinous-breasted Myna	Acridotheres leucocephalus	Burmese Myna	Acridotheres burmannicus	Acridotheres leucocephalus is a proposed split from Acridotheres burmannicus based on plumage, bill size and color pattern and, possibly, iris color (del Hoyo & Collar 2016; HBW/BirdLife). The split species A. leucocephalus retains the English name Vinous-breasted Myna while the parent form becomes Burmese Myna.
AS 13.1	Ethiopian Thrush	Turdus simensis	Groundscraper Thrush	Turdus litsitsirupa	Ethiopian Thrush Turdus simensis is split from Groundscraper Thrush T. litsitsirupa based on deep genetic divergence and differences in plumage and vocalizations (Nylander et al. 2008; del Hoyo & Collar 2016; HBW/BirdLife).
AS 13.1	Rufous-breasted Blue Flycatcher	Cyornis camarinensis	Blue-breasted Blue Flycatcher	Cyornis herioti	Rufous-breasted Blue Flycatcher Cyornis camarinensis is split from Blue-breasted Blue Flycatcher C. herioti based on its striking morpological differences (del Hoyo & Collar 2016; Allen 2020; HBW/BirdLife).
AL 13.1	Tanahjampea Blue Flycatcher	Cyornis djampeanus	Sulawesi Blue Flycatcher	Cyornis omissus	Treat as a subspecies of Sulawesi Blue Flycatcher C. omissus following Gwee et al. (2019) and aligning with Clements (2022) in IOC 13.1 based on weak vocal differentiation and minor differences in morphology and plumage from C. omissus.
AS 13.1	Kalao Blue Flycatcher	Cyornis kalaoensis	Mangrove Blue Flycatcher	Cyornis rufigastra	Kalao Blue Flycatcher Cyornis kalaoensis is split from Mangrove Blue Flycatcher Cyornis rufigastra, and is further regarded as specifically distinct from Tanahjampea Blue Flycatcher C. djampeanus (as proposed by del Hoyo & Collar (2016) and HBW/BLI), based on vocalizations and plumage that differ from both of those species (Gwee et al. 2019; Eaton et al. 2021).
PS 13.1	Tenerife Robin	Erithacus superbus	European Robin	Erithacus rubecula	Erithacus superbus Tenerife Robin is a proposed split from E. rubecula based on differences in plumage, morphometrics, bioacoustics and supporting molecular analysis (Sangster et al. 2022).
PS 13.1	Gran Canaria Robin	Erithacus marionae	European Robin	Erithacus rubecula	Erithacus marionae Gran Canaria Robin is a proposed split from Erithacus rubecula based on differences in plumage, morphometrics, bioacoustics and supporting molecular analysis, and differs from E. superbus by song, calls and a high level of genetic divergence (Sangster et al. 2022).
AS 13.1	Izu Robin	Larvivora tanensis	Japanese Robin	Larvivora akahige	Izu Robin Larvivora tanensis is split from Japanese Robin Larvivora akahige based primarily on differences in vocalizations and habitat (Zhao et al. 2016; del Hoyo & Collar 2016; HBW/BirdLife).
AS 13.1	Taiwan Bush Robin	Tarsiger formosanus	White-browed Bush Robin	Tarsiger indicus	Tarsiger formosanus Taiwan Bush Robin is a proposed split from Tarsiger indicus based on phylogenetic analysis couped with differences in plumage, morphology and song (Wei et al. 2022).
AS 13.1	Qilian Bluetail	Tarsiger albocoeruleus	Red-flanked Bluetail	Tarsiger cyanurus	Qilian Bluetail Tarsiger albocoeruleus (resurrected species epithet) is a proposed split from Red-flanked Bluetail T. cyanurus based on strong differences in song and morphometrics supported by phylogenetic analysis (Wei et al. 2022).
AS 13.1	Amber Mountain Rock Thrush	Monticola erythronotus	Forest Rock Thrush	Monticola sharpei	Restore Amber Mountain Rock Thrush Monticola erythronotus as a full species based on its distinctive plumage following del Hoyo & Collar (2016) and HBW/BirdLife.
PL 13.1	Ruaha Chat	Myrmecocichla collaris (leucolaema)	Arnot's Chat	Myrmecocichla arnotti	Restore Ruaha Chat Myrmecocichla collaris as a subspecies of Arnot's Chat Myrmecocichla arnotti (del Hoyo & Collar 2016; HBW/BirdLife). Change scientific name to leucolaema Fischer & Reichenow, 1880 which has priority.
AS 13.1	Rusty-breasted Wheatear	Oenanthe frenata	Red-breasted (Buff-breasted) Wheatear	Oenanthe bottae	Rusty-breasted Wheatear Oenanthe frenta is split from Oenanthe bottae (renamed Buff-breasted Wheatear) based on differences in plumage (del Hoyo & Collar 2016; HBW/BirdLife)
AS 13.1	Olive-naped Weaver	Ploceus brachypterus	Black-necked Weaver	Ploceus nigricollis	Olive-naped Weaver Ploceus brachypterus is split from Black-necked Weaver P. nigricollis based on differences in plumage and iris color (del Hoyo & Collar 2016; HBW/BirdLife).
AS 13.1	Chestnut-and-black Weaver	Ploceus castaneofuscus	Vieillot's Black Weaver	Ploceus nigerrimus	Chestnut-and-black Weaver Ploceus castaneofuscus is split from Vieillot's Black Weaver Ploceus nigerrimus based on its distinctive plumage (del Hoyo & Collar 2016; HBW/BirdLife).
AS 13.1	Red Weaver	Anaplectes jubaensis	Red-headed Weaver	Anaplectes rubriceps	Red Weaver Anaplectes jubaensis is split from Red-headed Weaver A. rubriceps (including leuconotos) based on its distinctive plumage (del Hoyo & Collar 2016; HBW/BirdLife).
AS 13.1	Red-cowled Widowbird	Euplectes laticauda	Red-collared Widowbird	Euplectes ardens	Red-cowled Widowbird Euplectes laticauda (including suahelicus) is split from Red-collared Widowbird E. ardens based on substantial differences in plumage, and tail length of males in breeding plumage (del Hoyo & Collar 2016; HBW/BirdLife). Phylogenetic analysis also demonstrates relatively deep genetic divergence (de Silva et al. 2019).
AL	Red-backed Mannikin	Spermestes nigriceps	Black-and-white Mannikin	Spermestes bicolor	Red-backed Mannikin Spermestes nigriceps is lumped with Black-and-white Mannikin S. bicolor. Earlier claims of parapatric distribution (Sibley & Monroe 1970) have been disputed (Dowsett & Dowsett‐Lemaire 1993) and there is clinal variation of the color of the back from west to east (del Hoyo & Collar 2016; HBW/BirdLife).
AL	Abyssinian Waxbill	Estrilda ochrogaster	Fawn-breasted Waxbill	Estrilda paludicola	Abyssinian Waxbill Estrilda ochrogaster is lumped with Fawn-breasted Waxbill E. paludicola. Plumage characteristics that define this taxon, though distinctive, are not significantly different from those of the nominate subspecies than other subspecies within this complex (del Hoyo & Collar 2016; HBW/BirdLife).
AL 13.1	Landana Firefinch	Lagonosticta landanae	African Firefinch	Lagonosticta rubricata	Landana Firefinch Lagonosticta landanae is lumped with African Firefinch due to insignicant differences in plumage (Payne 2004; del Hoyo & Collar 2016; HBW/BirdLife).
AS 13.1	White-bellied Tanager	Tangara brasiliensis	Turquoise Tanager	Tangara mexicana	The geographically isolated White-bellied Tanager Tangara brasiliensis is restored as a full species as a split from Turqoise Tanager T. mexicana based on its distinctive plumage and larger size (Ridgely & Tudor 2009; del Hoyo & Collar 2016; HBW/BirdLife).
TEST

Proposed Splits/Lumps IOC Version 12.2

Number	English Name	Scientific Name	Parent	Parent (sci)	Proposal
AS 12.2	Red Grouse	Lagopus scotica	Willow Ptarmigan	Lagopus lagopus	Red Grouse Lagopus scotica is split from Willow Ptarmigan based on genomic evidence and differences in plumage (Kozma et al. 2019; Sangster et al. 2022).
AS 12.2	Tibetan Sand Plover	Charadrius atrifrons	Siberian Sand Plover	Charadrius mongolus	Tibetan Sand Plover C. atrifrons (including pamirensis and schaeferi) is a proposed split from Siberian Sand Plover C. mongolus (including stegmanni) based on phenotypic differences and phylogenetic analysis which demonstrates paraphyly of these two taxa relative to Greater Sand Plover Charadrius leschenaultii (Livezey 2010; Wei et al. 2022).
AS 12.2	MacGillivray's Prion	Pachyptila macgillivrayi	Salvin's Prion	Pachyptila salvini	Macgillivray's Prion P. macgillivrayi is split from Salvin's Prion based on bill morphology and other more subtle morphological differences, supported by genetic analysis (HBW/BirdLife; Harrison et al. 2021; Masello et al. 2022)
NEW 12.2	New Caledonian Storm Petrel	Fregetta lineata			New Caledonian Storm Petrel Fregetta lineata Mathews (1933) is recognized as a resurrected and redescribed species, distinct from the other taxa within Fregetta, based on biometrics and limited phylogenetic analysis (Cibiois et al. 2015; Robertson et al. 2016; Bretagnolle et al. 2022).
AL 12.2	Eastern Osprey	Pandion cristatus	Western Osprey (Osprey)	Pandion haliaetus	Eastern Osprey is re-lumped with Western Osprey as simply "Osprey" based on low genetic divergence, phylogenetic analysis, and absence of strong morphological differences (Monti et al. 2015; Monti et. al. 2018; HBW/BirdLife, Clements).
AL 12.2	Archer's Buzzard	Buteo archeri	Augur Buzzard	Buteo augur	Buteo archeri was formerly treated as a distinct species, Archer's Buzzard (Thiollay 1994; Riesing et al. 2003). But it is now generally regarded either as a subspecies or a rufous morph of Augur Buzzard (Clark 1996; Clark 2003; Dickinson & Remsen 2013; HBW/BirdLife). Tentatively treated as a subspecies here.
AS 12.2	Tasmanian Boobook	Ninox leucopsis	Morepork	Ninox novaeseelandiae	Tasmanian Boobook is split from Morepork based on genetic and vocal divergence and morphometrics (König & Weick 2008; Dickinson & Remsen 2013; Gwee et al. 2017; HBW/BirdLife).
AL 12.2	Usambara Eagle-Owl	Bubo vosseleri	Fraser's Eagle-Owl	Bubo poensis	Usambara Eagle-Owl was formerly regarded as a monotypic species based on size and some differences in plumage from the nominate subspecies of Fraser's Eagle-Owl (König & Weick. 2008). But vocalizations are not appreciably different (Hunter et al. 1998; Dowsett-Lemaire 2006). Treated as a subspecies of Fraser’s Eagle-Owl following HBW/BirdLife.
AL 12.2	Pere David's Owl	Strix davidi	Ural Owl	Strix uralensis	Pere David's Owl Strix davidi demonstrates broad plumage and vocal overlap with S. uralensis (Scherzinger 2004, Scherzinger et al. 2014). Treat as a subspecies of Ural Owl following HBW/BLI.
PS 12.2	Morotai Paradise Kingfisher	Tanysiptera doris	Common (Papuan) Paradise Kingfisher	Tanysiptera galatea	Morotai Paradise Kingfisher T. doris (including emiliae) is a proposed split from the rest of the Common Paradise Kingfisher complex based on distinctive vocalizatons (Sin et al. 2022).
PS 12.2	Halmahera Paradise Kingfisher	Tanysiptera margarethae	Common (Papuan) Paradise Kingfisher	Tanysiptera galatea	Halmahera Paradise Kingfisher T. margarethae (including browningi, brunhildae, and sabrina) is a proposed split from the rest of the Common Paradise Kingfisher complex based on distinctive vocalizatons (Sin et al. 2022).
PS 12.2	Obi Paradise Kingfisher	Tanysiptera obiensis	Common (Papuan) Paradise Kingfisher	Tanysiptera galeata	Monotypic Obi Paradise Kingfisher T. obiensis is a proposed split from the rest of the Common Paradise Kingfisher complex based on distinctive vocalizatons (Sin et al. 2022).
PS 12.2	Amboyna Paradise Kingfisher	Tanysiptera nais	Common (Papuan) Paradise Kingfisher	Tanysiptera galeata	Amboyna Paradise Kingfisher T. nais (including acis and boanensis) is a proposed split from the rest of the Common Paradise Kingfisher complex based on distinctive vocalizatons (Sin et al. 2022).
PS 12.2	Rossel Paradise Kingfisher	Tanysiptera rosseliana	Common (Papuan) Paradise Kingfisher	Tanysiptera galeata	Monotypic Rossel Paradise Kingfisher T. rosseliana is a proposed split from T. galatea based on morphological and vocal differences (Beehler & Pratt 2016; Gregory 2017; Sin et. al. 2022).
AS 12.2	Velvety Manakin	Lepidothrix velutina	Blue-crowned (Blue-capped) Manakin	Lepidothrix coronata	Transandean Velvety Manakin Lepidothrix velutina (including minuscula) is split from L. coronata based on significant phylogenetic and bioacoustic differences (Moncrieff et al. 2022; SACC 943). Change English name of L. coronata from Blue-crowned Manakin to Blue-capped Manakin with the split.
AS 12.2	Ventriloquial Oriole	Oriolus consobrinus	Dark-throated Oriole	Oriolus xanthonotus	Ventriloquial Oriole Oriolus consobrinus (including persuasus) is split from Dark-throated Oriole O. xanthonotus based on genomic analysis and differences in morphometrics, plumage, and bioacoustics (Rheindt et al. 2022).
PS 12.2	Tagula Manucode	Manucodia alter	Glossy-mantled Manucode	Manucodia ater	Tagula Manucode M. alter is split from Glossy-mantled Manucode M. ater based on strikingly different vocalizations and some morphological differences (Gregory 2017).
PS 12.2	Madagascar Plain Martin	Riparia cowani	Brown-throated Martin	Riparia paludicola	Madagascar Plain Martin is a proposed split from Brown-throated Martin based on morphology and vocalizations. English name tentative (HBW/BirdLife).
AL 12.2	Chinese Cupwing	Pnoepyga mutica	Scaly-breasted Cupwing	Pnoepyga albiventer	Pnoepyga mutica was formerly split provisionally from P. albiventer (Päckert et al. 2012) based on moderate divergence in mitochondrial DNA and vocalizations. But others have rejected the vocal distinctiveness (Boesman, 2016; HBW/BirdLife). Further evidence is needed to support the split at species level.
AL 12.2	African Reed Warbler	Acrocephalus baeticatus	Eurasian Reed Warbler	Acrocephalus scirpaceus	African Reed Warbler Acrocephalus baeticatus (including ambiguus, minor, cinnamomeus, suahelicus, and hallae) is lumped with Eurasian Reed Warbler A. scirpaceus as Common Reed Warbler based on similarities in morphology (other than wing structure in the non-migratory, sub-Saharan African populations), vocalizations, habitat choice, and relatively recent genetic divergence (Dowsett-Lemaire & Dowsett 1987; Olsson et al. 2016; HBW/BirdLife).
PS 12.2	Subdesert Jery	Neomixis pallidior	Stripe-throated Jery	Neomixis striatigula	Subdesert Jery is a proposed split from Stripe-throated Jery based on morphology and vocalizations (HBW/BirdLife).
AS 12.2	Anjouan White-eye	Zosterops anjuanensis	Malagasy White-eye	Zosterops maderaspatanus	Anjouan White-eye Z. anjuanensis is split from Z. maderaspatanus based on molecular analysis (Warren et al. 2006; Clements).
AS 12.2	Moheli White-eye	Zosterops comorensis	Malagasy White-eye	Zosterops maderaspatanus	Moheli White-eye Z. comorensis is split from Z. maderaspatanus based on molecular analysis (Warren et al. 2006; Clements).
New 12.2	Meratus White-eye	Zosterops meratusensis			Meratus White-eye is a newly described species from se Borneo (Irham et al. 2022).
AS 12.2	Kangean Tit-Babbler	Mixornis prillwitzi	Grey-cheeked Tit-Babbler	Mixornis flavicollis	Kangean Tit-Babbler Mixornis prillwitzi is split from M. flaicollis based on differences in plumage and vocalizations (Cros & Rheindt 2017; HBW/BirdLife).
New 12.2	Meratus Blue Flycatcher	Cyornis kadayangensis			Meratus Blue Flycatcher is a newly described species from se Borneo (Irham et al. 2022).
AL 12.2	Abbott's Sunbird	Cinnyris abbotti	Souimanga Sunbird	Cinnyris sovimanga	Abbott's Sunbird Cinnyris abbotti (including buchenorum) is lumped with Souimanga Sunbird Cinnyris sovimanga based on molecular data that show it embedded within the latter species (Warren et al. 2003; Skerrett & Disley 2011; Hawkins et al. 2015; HBW/BirdLife, Clements).
AL 12.2	Caqueta Seedeater	Sporophila murallae	Wing-barred Seedeater	Sporophila americana	Sporophila murallae is lumped with S. americana based on recent re-evalulation demonstrating a broad overlap in plumage characteristics and significant reduction in the perceived geographical gap between their distributions (SACC 932).

AS 12.1	Elgon Francolin	Scleroptila elgonensis	Moorland Francolin	Scleroptila psilolaema	Elgon Francolin is split from Moorland Francolin based on differences in vocalizations and plumage (Hunter et al. 2019; HBW/Birdlife, N. Redman in litt.)).
PS 12.1	Savanna Nightjar	Caprimulgus monticolus	"Allied" Nightjar	Caprimulgus affinis	Caprimulgus monticolus (including amoyensis and stictomus) is a proposed split from C. affinis which would assume the English name "Allied Nightjar". English names under discussion and differ from those those suggested in the publication. (Sangster et al. 2021).
AS 12.1	Churring Nightjar	Caprimulgus griseatus	Savanna Nightjar	Caprimulgus affinis	C. griseatus (including mindanensis) is split from C. affinis (Sangster et al. 2021).
PS 12.1	Eastern Rockhopper Penguin	Eudyptes filholi	Southern Rockhopper Penguin	Eudyptes chrysocome	Eastern Rockhopper Penguin Eudyptes filholi is a proposed split from E. chrysocome based on an integrative taxonomy including genetic and morphological differences and strict allopatry (Frugone et al. 2021).
PS 12.1	Kermadec Storm Petrel	Pelagodroma albiclunis	White-faced Storm Petrel	Pelagodroma marina	Kermadec Storm Petrel Pelagodroma albiclunis is a proposed split from White-faced Storm Petrel based on consistent striking differences in plumage and tail morphology (Gill et al. 2010).
PS 7.1	Yellow-billed Egret	Ardea brachyrhyncha	Intermediate Egret	A. intermedia	African Ardea brachyrhyncha is a proposed split from Asian A. intermedia on the basis of striking differences in breeding cycle soft part coloration (Cake et al. 2016; HBW/Birdlife).
PS 7.1	Plumed Egret	Ardea plumifera	Intermediate Egret	A. intermedia	Australasian Ardea plumifera is a proposed split from Asian A. intermedia on the basis of striking differences in breeding cycle soft part coloration, morphometrics and calls (HBW/Birdlife; Rasmussen & Anderton 2012).
PS 12.1	Walden's Scops Owl	Otus modestus	Oriental Scops Owl	Otus sunia	Otus modestus is a proposed split from O. sunia on the basis of unique vocalizations (Rasmussen & Anderton 2012).
AS 12.1	Wetar Scops Owl	Otus tempestatis	Moluccan Scops Owl	Otus magicus	Wetar Scops Owl Otus tempestatis is split from Otus magicus based on distinct vocalizations (Eaton et al. 2021; HBW/Birdlife).
PS 12.1	Brown Wood Owl	Strix indranee	Sunda Wood Owl	Strix leptogrammica	Asian mainland Brown Wood Owl Strix indranee (seven subspecies) is a proposed split from Sunda Wood Owl S. leptogrammica based on vocalizations and plumage (Eaton et al. 2021). Note that the English name Brown Wood Owl follows the split species.
AS 12.1	Brown-breasted Kingfisher	Halcyon gularis	White-throated Kingfisher	Halcyon smyrnensis	Brown-breasted Kingfisher H. gularis is split from H. smyrnensis based on plumage and vocalizations (Collar 2011b; Allen 2020; HBW/Birdlife).
AS 12.1	Rufous-crowned Bee-eater	Merops americanus	Blue-throated Bee-eater	Merops viridis	Rufous-crowned Bee-eater Merops americanus is split from M. viridis based on morphologic differences (Collar 2011b; Allen 2020; HBW/Birdlife).
AS 12.1	Malabar Flameback	Chrysocolaptes socialis	Greater Flameback	Chrysocolaptes guttacristatus	Chrysocolaptes socialis is split from C. guttacristatus based on differences in plumage and vocalizations (Rasmussen & Anderton 2012; Abhirami et al. 2021).
AS 12.1	Blue-backed Parrot	Tanygnathus everetti	Azure-rumped Parrot	Tanygnathus sumatranus	Tanygnathus everetti (including duponti, freeri and burbidgii) is a proposed split from T. sumatranus based on plumage, eye color and genetic divergence (Arndt et al. 2019; Eaton et al. 2021). Note that the English name Blue-backed Parrot follows the split species.
AS 12.1	Huon Bowerbird	Amblyornis germanus	MacGregor's Bowerbird	Amblyornis macgregoriae	Huon Bowerbird Amblyornis germanus is a proposed split from A. macgregoriae based on distinctive bower construction and unpublished molecular differences (Beehler & Pratt 2016; Gregory 2017).
AS 12.1	Bacan Myzomela	Myzomela batjanensis	Sulawesi Myzomela	Myzomela chloroptera	Bacan Myzomela M. batjanensis is split from Sulawesi Myzomela M. chloroptera based on substantial differences in plumage and voice (Eaton et al. 2021, HBW/Birdlife).
AL 12.1	Indonesian Honeyeater	Lichmera limbata	Brown Honeyeater	Lichmera indistincta	Lichmera limbata is re-lumped with Brown Honeyeater L. indistincta based on indistinct plumage, vocalizations and genetics (Mees 2006; Dickinson & Christidis 2014; Eaton et al. 2021).
PS 12.1	Roving Cuckooshrike	Coracina sumatrensis	Bar-bellied Cuckooshrike	Coracina striata	Sundaic Coracina sumatrensis is a proposed split from endemic Philippine C. striata based on morphological differences and limited mtDNA data (Eaton et al. 2021).
PS 12.1	Visayan Cuckooshrike	Coracina panayensis	Bar-bellied Cuckooshrike	Coracina striata	Monotypic Coracina panayensis is a proposed split from C. striata based on morphological and bioacoustic differeces (Allen 2020;HBW/Birdlife).
AS 12.1	Louisiade Monarch	Symposiachrus melanopterus	Spectacled Monarch	Symposiachrus trivirgatus	Monotypic Louisiade Monarch Symposiachrus melanopterus is a proposed split from S. trivirgatus based on morphological differences and phylogenetic analysis (McCullough et al. 2021).
PS 12.1	Tagula Manucode	Manucodia alter	Glossy-mantled Manucode	Manucodia ater	Tagula Manucode M. alter is a proposed split from M. ater based on reportedly very different vocalizations and some morphological differences (Gregory 2017).
AS 12.1	Flores Leaf Warbler	Phylloscopus floresianus	Timor Leaf Warbler	Phylloscopus presbytes	Phylloscopus floresianus is split from P. presbytes on the basis of plumage and vocal differences. (Eaton et al. 2021)
AS 12.1	Guadalcanal Thicketbird	Cincloramphus turipavae	Melanesian (Santo) Thicketbird	Cincloramphus whitneyi	Split based on morphological differences and allopatry (Dutson 2011, HBW/Birdlife).
PS 12.1	Palawan Tit-Babbler	Mixornis woodi	Pin-striped Tit-Babbler	Mixornis gularis	Proposed split based on striking allopatry, plumage, and reported differences in calls (Collar & Robson 2020; Allen 2020).
PS 12.1	Brown-crowned (Phayre's) Scimitar Babbler	Pomatorhinus phayrei	Black-crowned (Coral-billed) Scimitar Babbler	Pomatorhinus ferruginosus	Pomatorhinus phayrei (including stanfordi, albogularis, orientalis and dickinsoni) is a proposed split from monotypic P. ferruginosus based on differences in plumage and vocalizations. English names under discussion (Rasmussen & Anderton 2012; HBW/Birdlife).
PS 12.1	Indochinese Babbler	Malacopteron indochinense	Scaly-crowned Babbler	Malacopteron cinereum	Malacopteron indochinense (Indochinese Babbler) is a proposed split from M. cinereum based on differences in plumage, vocalizations, and mtDNA (Eaton et al. 2021).
PS 12.1	Glissando Babbler, Leaflitter Babbler	Pellorneum saturatum, Pellorneum poliogene	Mourning (Short-tailed) Babbler	Pellorneum malaccense	Pellorneum saturatum and Pellorneum poliogene are proposed splits from P. malaccense based on pronounced vocal and genome-wide differences (Eaton et al. 2021). English names tentative.
PS 12.1	Bornean Swamp Babbler	Pellorneum macropterum	Malayan Swamp (White-chested) Babbler	Pellorneum rostratum	Proposed split based on vocal and genetic differences (Eaton et al. 2021). English names tentative.
PS 12.1	Modest Flowerpecker	Dicaeum modestum	Thick-billed Flowerpecker	Dicaeum agile	Modest Flowerpecker (including subspecies pallescens, atjehense and finschi) is a proposed split from Thick-billed Flowerpecker on the basis of vocalizations and morphology (Rasmussen & Anderton 2012; Eaton et al. 2021). But see Boesman (2016).
PS 12.1	Tenggara Flowerpecker	Dicaeum obsoletum	Thick-billed Flowerpecker	Dicaeum agile	Tenggara Flowerpecker (including subspecies tinctum) a proposed split from Thick-billed Flowerpecker (and is also distinguished from proposed Modest Flowerpecker) on the basis of vocalizations and morphology (Eaton et al. 2021). But see Boesman (2016).
PS 12.1	Orange-lined Sunbird	Leptocoma juliae	Purple-throated Sunbird	Leptocoma sperata	Proposed split based on differences in plumage (Allen 2020, HBW/Birdlife).
AS 12.1	Ruvu Weaver	Ploceus holoxanthus	Eastern Golden Weaver	Ploceus subaureus	Resurrect P. holoxanthus as a unique species after having been mistakenly synonymized with P. subaureus for years. But critical analysis shows consistent morphological differences and it is quite genetically distinct (Turner & Kennedy 2019; Fjeldså et al. 2020; Oschadleus et al. 2021).
AS 12.1	Australian Zebra Finch	Taeniopygia castanotis	(Sunda) Zebra Finch	Taeniopygia guttata	Australian Zebra Finch T. castanotis is split from (Sunda) Zebra Finch T. guttata based on differences in plumage, moderate mtDNA divergence. and evidence of assortive mating in captivity (Clayton 1990; Payne 2010; Olsson & Alström 2020; Eaton et al. 2021; HBW/Birdlife).
AL 12.1	Arabian Accentor	Prunella fagani	Radde's Accentor	Prunella ocularis	Arabian Accentor P. fagani is lumped with Radde's Accentor P. ocularis based on only minor differences in plumage, identical vocalizations, and insufficient genetic evidence to support a split. Treat as a non-migratory subspecies (Shirihai & Svensson 2018; Kirwan et al. 2021).
AS 12.1	African Chaffinch, Azores Chaffinch, Madeira Chaffinch, Canary Islands Chaffinch	Fringilla spodiogenys, F. moreletti, F. maderensis, F. canariensis	Eurasian (Common) Chaffinch	Fringilla coelebs	Fringilla spodiogenys (including africana and harterti), F. moreletti, F. maderensis and F. canariensis (including bakeri, ombriosa and palmae) are proposed splits from F. coelebs based on differences in plumage and genetics (Recuerda et al. 2021).
AS 12.1	Chinese Long-tailed Rosefinch	Carpodacus lepidus	(Siberian) Long-tailed Rosefinch	Carpodacus sibiricus	Carpodacus lepidus (including henrici) is split from C. sibricus (including sanguinolentus and ussuriensis) based on genetic and plumage differences (Liu et al. 2020).
AS 12.1	Masked Bunting	Emberiza personata	Black-faced Bunting	Emberiza spodocephala	Monotypic E. personata is split from E. spodocephala based on morphological and genetic differences (Weissensteiner et al. 2014; Päckert et al. 2015; Brazil 2018; HBW/Birdlife).
New 12.2	Inti Tanager	**Heliothraupis oneilli**			Newly described genus and species within Thraupidae within the same clade as Black-goggled and Grey-headed Tanagers: Lane et al. 2021.
AS 11.2	Sangihe Lilac Kingfisher	Cittura sanghirensis	Sulawesi Lilac Kingfisher	Cittura cyanotis	Accepted split on the basis of genetic traits, plumage, structural and bioacoustic differences (Eaton et al. 2016, 2021; HBW/Birdlife).
PS 11.2	Mindanao Dwarf Kingfisher	Ceyx mindanensis	Luzon Dwarf Kingfisher	Ceyx melanurus	Proposed split of Ceyx mindanensis from C. melanurus (including samarensis) on the basis of significant differences in plumage, some structural differences and phylogenetic analysis (Anderson et al. 2013; Allen 2020; HBW/BirdLife).
PS 11.2	Red-necked Falcon	Falco ruficollis	Red-headed Falcon	Falco chicquera	Red-necked Falcon F. ruficollis (including horsbrughi) is a proposed split from Asian Falco chicquera, renamed Red-headed Falcon, based on differences in plumage, preferred breeding habitat, and genetic differences (HBW/Birdlife).
AS 11.2	Fulvous-faced Scrub Tyrant	Euscarthmus fulviceps	Fulvous-crowned Scrub Tyrant	Euscarthmus meloryphus	Proposed split based on morphological and vocal differences (Franz et al. 2020; SACC 898). English names established in SACC 916.
PS 11.2	Guadalcanal Fantail	Rhipidura ocularis	Brown (Bougainville) Fantail	Ripidura drownei	Proposed split based on plumage and vocal differences (Dutson 2011; Gregory 2017; HBW/Birdlife).
PS 11.2	Vanuatu Streaked Fantail, Fiji Streaked Fantail	Rhipidura spilodera, Rhipidura layardi	(New Caledonia) Streaked Fantail	Rhipidura verreauxi	Vanuatu Streaked Fantail Rhipidura spilodera and Fiji Streaked Fantail Rhipidura layardi (including erythronota and rufilateralis) are proposed splits from New Caledonia Streaked Fantail R. verreauxi based on plumage and vocal differences (HBW/BirdLife).
PS 11.2	Angola (Green-crowned) Greenbul	Phyllastrephus viridiceps	White-throated Greenbul	Phyllastrephus albigularis	Proposed split based on plumage and reported bioacoustic differences (HBW/Birdlife). English name under discussion.
PS 11.2	Sulu Bulbul	Hypsipetes haynaldi	Yellowish Bulbul	Hypsipetes everetti	Proposed split based on vocal and plumage differences (Allen 2020; HBW/Birdlife).
PS 11.2	Malagasy Plain Martin	Riparia cowani	Brown-throated Martin	Riparia paludicola	Proposed split based on morphometrics, some plumage differences and reported differences in calls (HBW/Birdlife). English name under discussion.
PS 11.2	Snares Fernbird	Poodytes caudatus	New Zealand Fernbird	Poodytes punctatus	Proposed split based on plumage and morphometrics (HBW/Birdlife).
PS 11.2	Huambo Cisticola	Cisticola bailunduensis	Rock-loving Cisticola	Cisticola emini	Proposed split based on morphology, strong bioacoustic differences and different habitat (HBW/Birdlife).
PS 11.2	Sulu Tit-Babbler	Macronus kettlewelli	Brown Tit-Babbler	Macronus striaticeps	Proposed split from based on major plumage and iris color differences (Allen 2020).
PS 11.2	Horsfield's Thrush	Zoothera horsfieldi	Scaly Thrush	Zoothera dauma	Proposed split based on vocal, plumage and morphometric traits (Eaton et al. 2016). Apparently closer phylogenetically to Z. aurea than to Z. dauma (Fjeldså et al. 2020).
PS 11.2	Western (White-winged) Magpie-Robin	Copsychus pica	Madagascan Magpie-Robin	Copsychus albospecularis	Proposed split based on morphometrics, bioacoustics, differences in plumage and display, and parapatric distribution (HBW/Birdlfe). English name under discussion.
AS 11.2	Visayan Shama	Copsychus superciliaris	White-browed Shama	Copsychus luzoniensis	Accepted split based on genetic and plumage differences (Lim et al. 2010; Collar 2011b; Sánchez-González et al. 2015, HBW/BLI, Allen 2020).
PS 11.2	Volcano Sunbird	Cinnyris preussi	Rift (Northern Double-collared) Sunbird	Cinnyris reichenowi	Proposed split based on genetic, morphological, and ecological divergence (Cooper et al. 2021).
AS 11.2	Arabian Sunbird	Cinnyris hellmayri	Shining Sunbird	Cinnyri habessinicus	Arabian Sunbird Cinnyris hellmayri (including kinneari) is split from Shining Sunbird C. habessinicus on the basis of distinctive male and female plumages, larger size, and reportedly different vocalizations (Shirihai & Svensson 2018; HBW/Birdlife).
PS 11.2	Black-breasted Sunbird	Cinnyris idenburgi	Olive-backed Sunbird	Cinnyris jugularis	Proposed split based on plumage and morphometric differences (Gregory 2017; HBW/Birdlife).
PS 11.2	Grand Comoro Sunbird, Moheli Sunbird	Cinnyris moebii, Cinnyris voeltzkowi	Madagascar (Malagasy) Sunbird	Cinnyris notatus	Proposed splits on the basis of differences in morphology and genetic divergence (Warren et al. 2003; HBW/Birdlife).
PS 11.2	Upemba Masked Weaver	Ploceus upembae	Katanga Masked Weaver	Ploceus katangae	Proposed split based on differences in plumage and preliminary genetic data (Craig et al. 2011; HBW/Birdlife).
PS 11.2	Chestnut-and-black Weaver	Ploceus castaneofuscus	Vieillot's Black Weaver	Ploceus nigerrimus	Proposed split based on marked differences in plumage and reported differences in breeding behavior (Crook 1963; HBW/Birdlife).
PS 11.2	Grand Comoro Fody	Foudia consobrina	Red-headed (Comoros) Fody	Foudia eminentissima	Foudia consobrina is a proposed split from F. eminentissima based on differences in plumage, evidently some vocal differences, and sister relationship with other Comoros taxa (Warren et al. 2011; Safford & Hawkins 2013; HBW/Birdlife; de Silva et al. 2019).
PS 11.2	Malayan Bullfinch	Pyrrhula waterstradti	Brown Bullfinch	Pyrrhula nipalensis	Proposed split based on differences in plumage and call (Puan et al. 2020; HBW/Birdlife)
Done

PS 11.2	Parana Chachalaca	Ortalis remota	Speckled Chachalaca	Ortalis guttata	Recently proposed as a distinct species (Silveira et al. 2017; SACC 902). Did not pass SACC.
AS 11.2	Kai Coucal	Centropus spilopterus	Pheasant Coucal	Centropus phasianinus	Kai Coucal Centropus spilopterus is relisted as a proposed split from Pheasant Coucal C. phasianinus based on its distinctive plumage and allopatric distribution (Eaton et al. 2021; HBW/Birdlife)
NEW 10.1 Reposted	Whistling Long-tailed Cuckoo	Cercococcyx lemaireae	Dusky Long-tailed Cuckoo	C. mechowi	Morphologically 'identical' western populations proposed (10.1) to be recognized as a new species Cercococcyx lemaireae based on song and call differences from C. mechowi (first noted by Dowsett-Lemaire 1997) (Boesman & Collar 2019). Apparent narrow hybrid zone in Bakossi Mountains, Cameroon.
AS 11.2	Philippine Collared Dove	Streptopelia dusumieri	Sunda (Island) Collared Dove	Streptopelia bitorquata	Accepted split based on vocal and plumage differences (Collar 2011b; Eaton et al. 2016; Allen 2020; HBW/Birdlife).
AS 11.2	Burmese Collared Dove	Streptopelia xanthocycla	Eurasian Collared Dove	Streptopelia decaocto	Accepted split based on plumage, unique eye-ring color, song, and geographical isolation (HBW/Birdlife).
PS 11.2	Western Spotted Dove	Spilopelia suratensis	Eastern Spotted Dove	Spilopelia chinensis	Western Spotted Dove (including ssp ceylonensis) is a proposed split based on differences in plumage, soft-part colors and vocalizations (Rasmussen & Anderton 2012; HBW/Birdlife).
AS 11.2	Raiatea Fruit Dove	Ptilinopus chrysogaster	Grey-green Fruit Dove	Ptilinopus purpuratus	Accepted split based on plumage differences and molecular data (Cibois et al. 2014; Thibault & Cibois 2017; HBW/Birdlife).
AS 11.2	Geelvink Fruit-dove	Ptilinopus speciosus	Yellow-bibbed Fruit Dove	Ptilinopus solomonensis	Accepted split based on plumage and vocal differences (Gregory 2017; HBW/Birdlife).
AS 11.2	Malabar Imperial Pigeon	Ducula cuprea	Mountain Imperial Pigeon	Ducula badia	Accepted split based on differences in morphology and voice (HBW/Birdlife; Niranjana & Praveen 2021).
AS 11.2	Geelvink Imperial Pigeon	Ducula geelvinkiana	Spice Imperial Pigeon	Ducula myristicivora	Accepted split based on vocal, morphological and plumage differences (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
AS 11.2	Ryukyu Green Pigeon	Treron permagnus	Taiwan Green Pigeon	Treron formosae	Accepted split of Ryukyu Green Pigeon (including ssp medioximus) from Taiwan (Whistling) Green Pigeon (including ssp filipinus) based on morphological and vocal differences (Brazil 2009; HBW/Birdlife).
PS 11.2	Eastern Bronze Ground Dove	Pampusana johannae	(Western) Bronze Ground Dove	Pampusana beccarii	Proposed split based on differences in vocalizations, plumage, elevation. and habitat (Gregory 2017; HBW/Birdlife).
AS 11.2	New Caledonian Buttonquail	Turnix novaecaledoniae	Painted Buttonquail	Turnix varius	Accepted split following HBW/Birdlife.
PS 11.2	African Woolly-necked Stork	Ciconia microscelis	Asian Woolly-necked Stork	Ciconia episcopus	Proposed split of Ciconia microscelis from C. episcopus (including neglecta) based on pronounced plumage differences (Eaton et al. 2021; HBW/Birdlife).
AS 11.2	Banggai Scops Owl	Otus mendeni	Sulawesi Scops Owl	Otus manadensis	Accepted split based on vocalizations (Eaton et al. 2016, 2021; HBW/Birdlife).
AS 11,2	Guadalcanal Owl, Malaita Owl, Makira Owl	Athene granti, Athene malaitae, Athene roseoaxillaris	West Solomons Owl	Athene jacquinoti	Accepted splits based on plumage and bioacoustic differences (Dutson 2011; HBW/Birdlife).
AS 11.2	Ethiopian Bee-eater	Merops lafresnayii	Blue-breasted Bee-eater	Merops variegatus	Merops lafresnayii is an accepted split from M. variegatus based on morphological and vocal differences. Differs from the similarly sized M. oreobates by its different plumage and voice (Redman et al. 2016; Fry et al. 2020; HBW/Birdlife).
AS 11.2	African Green Bee-eater, Arabian Green Bee-eater	Merops viridissimus, Merops cyanophrys	Asian Green Bee-eater	Merops orientalis	Merops viridissimus (including ssp flavoviridis and cleopatra) and Merops cyanophrys (including ssp muscatensis) are accepted splits from Merops orientalis based on significant differences in morphology and voice (Fry et al. 2020; HBW/Birdlife).
AS 11.2	Sumatran Woodpecker	Picus dedemi	Grey-headed Woodpecker	Picus canus	Accepted split based on significant differences in plumage and voice (Eaton et al. 2021; HBW/Birdlife).
AS 11.2	Southern Sooty Woodpecker	Mulleripicus fuliginosus	Northern Sooty Woodpecker	Mulleripicus funebris	Accepted split from M. funebris (including mayri and parkesi) on the basis of structural and plumage differences and possible vocal differences (Collar 2011b; Allen 2020; HBW/Birdlife, Clements).
NEW 10.1 Reposted	Western Yellow-spotted Barbet	Buccanodon dowsetti	(Eastern) Yellow-spotted Barbet	B. duchaillui	Morphologically 'identical' western populations proposed (10.1) to be recognized as Buccanodon dowsetti sp. nov. based on very different vocals (first noted by Borrow & Demey 2001) (Boesman & Collar 2019). Replaces B. duchaillui west of Dahomey Gap.
AS 11.2	Usambiro Barbet	Trachyphonus usambiro	D'Arnaud's Barbet	Trachyphonus darnaudii	Accepted split based on plumage and vocal differences (Sibley & Monroe 1990; Stevenson & Fanshaw 2002; HBW/Birdlife).
AS 11.2	Comoros Black Parrot	Coracopsis sibilans	Lesser Vasa Parrot	Coracopsis nigra	Accepted split based on genetic divergence and significant vocal and size difference (Kundu et al. 2012; HBW/Birdlife).
AS 11.2	Simeulue Parrot	Psittinus abbotti	Blue-rumped Parrot	Psittinus cyanurus	Accepted split based on substantial structural and plumage differences (Eaton et al. 2016; HBW/Birdlife).
PS 11.2	Snow Mountain Tiger Parrot	Psittacella lorentzi	Painted Tiger Parrot	Psittacella picta	Proposed split based on differences in plumage (Gregory 2017; HBW/Birdlife).
PS 11.2	Caatinga Antshrike	Thamnophilus capistratus	Barred Antshrike	Thamnophilus doliatus	Proposed split based on bioacoustic, morphological and phylogenetic differences and reported sympatry/parapatry (SACC 890).
AS 11.2	Perija Antpitta, Sierra Nevada Antpitta, Muisca Antpitta, Cajamarca Antpitta, Junin Antpitta, Urubamba Antpitta, Bolivian Antpitta	Grallaria saltuensis, G. spatiator. G. rufula, G. cajamarcae, G. obscura, G. occabambae, G. cochabambae	Rufous Antpitta	Grallaria rufula	Accepted split of currently recognized subspecies to full species based on phylogenetic, vocal and, where pertinent, morphological differences (Chesser et al. 2020; Isler et al. 2020; SACC 883). English name of G. spatiator is provisional.
AS 11.2	Equatorial Antpitta	Grallaria saturata	Rufous Antpitta	Grallaria rufula	Accepted split of resurrected subspecies to full species based on phylogenetic and vocal differences (Chesser et al. 2020; Isler et al. 2020; SACC 883).
*AS 11.2*	Chami Antpitta, Chachapoya Antpitta, Panao Antpitta, Oxapampa Antpitta, Ayacucho Antpitta, Puno Antpitta	Grallaria alvarezi, Grallaria gravesi, Grallaria oneilli, Grallaria centralis, Grallaria ayacuchensis, Grallaria sinaensis	Rufous Antpitta	Grallaria rufula	Accepted new species within the Rufous Antpitta complex based on phylogenetic, vocal and, where pertinent, morphological differences (Chesser et al. 2020; Isler et al. 2020; SACC 883). English names of G. gravesi and G. oneilli are provisional.
AS 11.2	Biak Myzomela	Myzomela rubrobrunnea	Dusky Myzomela	Myzomela obscura	Biak Myzomela Myzomela rubrobrunnea is split from Dusky Myzomela M. obscura based on morphological differences (Gregory 2017; HBW/Birdlife).
AS 11.2	Moluccan Myzomela, Red-tinged Myzomela	Myzomela simplex, Myzomela rubrotincta	Dusky Myzomela	Myzomela obscura	Moluccan Myzomela Myzomela simplex (including ssp. mortyana) and Red-tinged Myzomela Myzomela rubrotincta are splits from Myzomela obscura based on differences in plumage, size and DNA (Eaton et al. 2016, 2021; HBW/Birdlife).
AS 11.2	Reddish Myzomela	Myzomela erythrina	Red Myzomela	Myzomela cruentata	Reddish Myzomela Myzomela erythrina (including lavongai, cantans, vinacea) is split from Red Myzomela based on differences in morphology, plumage and elevation (Gregory 2017; HBW/Birdlife).
AS 11.2	Long-billed Myzomela	Myzomela longirostris	Red-collared Myzomela	Myzomela rosenbergii	Accepted split based on morphometric differences and distinctive female plumage (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
AS 11.2	Rennell Gerygone	Gerygone citrina	Fan-tailed Gerygone	Gerygone flavolateralis	Accepted split based on differences in plumage and eye color, and biogeography (Dutson 2011; HBW/Birdlife).
NEW 11.2	Satin Berrypecker	Melanocharis citreola	Streaked Berrypecker	Melanocharis striativentris	Newly described species based on plumage and phylogenetic analysis (Milá et al. 2021).
AS 11.2	Spotted Berrypecker	Rhamphocharis piperata	Thick-billed (formerly Spotted) Berrypecker	Rhamphocharis crassirostris	Rhamphocharis piperata is split from R. crassirostris based on morphological differences (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife). English name Spotted Berrypecker is assigned to the split species to reflect its female plumage.
AS 11.2	Western Crested Berrypecker	Paramythia olivacea	Eastern Crested Berrypecker	Paramythia montium	Accepted split based on morphological differences (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
AS 11.2	West African Batis	Batis occulta	Fernando Po Batis	Batis poensis	Accepted split based on differences in plumage and size (Sinclair & Ryan 2003; Clements; HBW/Birdlife).
PS 11.2	Comoros Blue Vanga	Cyanolanius comorensis	(Madagascar) Blue Vanga	Cyanolanius madagascarinus	Comoros Blue Vanaga Cyanolanius comorensis (including bensoni) is a proposed split from Madagascar Blue Vanga C. madagascarinus based on morphological, plumage and vocal differences (Safford & Hawkins 2013; HBW/Birdlife).
AS 11.2	Biak Triller	Lalage leucoptera	Black-browed Triller	Lalage atrovirens	Accepted split based on differences in plumage and voice (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
AS 11.2	Giant Grey Shrike	Lanius giganteus	Chinese Grey Shrike	Lanius sphenocercus	Accepted split on the basis of strong morphological divergence including where ranges approach; habitat differences; and genetic divergence (Svensson et al. 2009; Olsson et al. 2010; Panov et al. 2011; Dickinson & Christidis 2014).
AS 11.2	Biak Fantail	Rhipidura kordensis	Northern Fantail	Rhipidura rufiventris	Accepted split on the basis of vocal and plumage differences (Gregory 2017; HBW/Birdlife).
AS 11.2	Tanimbar Monarch	Carterornis castus	White-naped Monarch	Carterornis pileatus	Accepted split based on structural, plumage and bioacoustic differences (King 1997; Eaton et al. 2016; HBW/Birdlife; Clements). The English name Tanimbar Monarch is prefered over Loetoe Monarch following HBW/Birdlife and Eaton et al. (2016).
AS 11.2	Mussau Flycatcher, Velvet Flycatcher, Dyaul Flycatcher	Myiagra hebetior, Myiagra eichhorni, Myiagra cervinicolor	Velvet Flycatcher	Myiagra hebetior	Accepted three-way split of Myiagra hebetior based on morphometric differences, strikingly different female plumage. and vocalizations (Gregory 2017; HBW/Birdlife). Note English name Velvet Flycatcher is assigned to Myiagra eichhorni.
AS 11.2	Wetar Oriole	Oriolus finschi	Timor (Olive-brown) Oriole	Oriolus melanotis	Accepted split based on strong genetic divergence and substantial vocal and plumage differences (Eaton et al. 2016; Jønsson et al. 2019; HBW/Birdlife).
AS 11.2	Arabian Lark	Eremalauda eremodites	Dunn's Lark	Eremalauda dunni	Accepted split based on differences in size, small but consistent differences in plumage, and reported deep genetic divergence (Shirihai & Svensson 2018).
AS 11.2	Sumatran Bulbul	Ixos sumatranus	Javan (Sunda) Bulbul	Ixos virescens	Accepted split based on plumage and vocal differences (Eaton et al. 2016).
AS 11.2	Camiguin Bulbul	Hypsipetes catarmanensis	Yellowish Bulbul	Hypsipetes everetti	Accepted split based on vocal and plumage differences (Allen 2020; HBW/Birdlife).
AS 11.2	Siberian House Martin	Delichon lagopodum	Common House Martin	Delichon urbicum	Accepted split based on morphological and vocal differences and syntopic nesting (Leader et al. 2021).
AS 11.2	Tenggara Paradise Flycatcher	Terpsiphone floris	Blyth's Paradise Flycatcher	Terpsiphone affinis	Accepted split based on bioacoustic, morphological and phylogenetic data. Includes ssp. sumbaensis (Eaton et al. 2016; Fabre et al. 2012).
AS 11.2	Bornean Black Magpie	Platysmurus aterrimus	Malayan Black Magpie	Platysmurus leucopterus	Accepted split based on substantial plumage and vocal differences (Eaton et al. 2016; BLI/HBW).
AS 11.2	Small Crow	Corvus samarensis	Slender-billed Crow	Corvus enca	Accepted split based on significant vocal differences and morphology. Includes ssp. sierramadrensis (see Allen 2020).
AS 11.2	Palawan Crow	Corvus pusillus	Slender-billed Crow	Corvus enca	Accepted split based on plumage, bill morphology and major vocal differences (Allen 2020).
AS 11.2	Obi Paradise-crow	Lycocorax obiensis	Halmahera Paradise-crow	Lycocorax pyrrhopterus	Accepted split based on pronounced vocal and plumage differences (Eaton et al. 2016; HBW/Birdlife).
AS 11.2	Black-capped Robin	Heteromyias armiti	Ashy Robin	Heteromyias albispecularis	Black-capped Robin Heteromyias armiti (including rothschildi) is split from H. albispecularis based on differences in genetics, plumage and vocalizations (Christidis et al. 2011; Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
PS 11.2	Ishigaki Tit	Parus nigriloris	Japanese Tit	Parus minor	Proposed split based on striking differences in plumage and evidently in vocalizations (Brazil 2018).
AL 11.2	Alpine Leaf Warbler	Phylloscopus occisinensis	Tickell's Leaf Warbler	Phylloscopus affinis	Accepted lump based on bioacoustic, morphological and phylogenetic data. Treat as a subspecies (Zhang et al. 2019).
AS 11.2	Lompobattang Leaf Warbler	Phylloscopus sarasinorum	Sulawesi Leaf Warbler	Phylloscopus nesophilus	Accepted split based on bioacoustic and morphological differences. Note that new English name follows the more range-restricted taxon which retains the scientific name of the formerly combined species. The more widespread form, P. nesophilus, retains the English name of "Sulawesi Leaf Warbler" (Berryman & Eaton 2020).
NEW 11.2	Kilombero Cisticola	Cisticola bakerorum			Newly described species based on phylogenetics, morphology, and distinctive vocalizations (Fjeldså et al. 2020).
NEW 11.2	White-tailed Cisticola	Cisticola anderseni			Newly described species based on phylogenetics, morphology, and distinctive vocalizations (Fjeldså et al. 2020).
AS 11.2	Delicate Prinia	Prinia lepida	Graceful Prinia	Prinia gracilis	Split of Prinia lepida (including akyildizi, irakensis, carpenteri, lepida, and stevensi) from P. gracilis is based on differences in morphometrics, plumage, and vocalizations, and mtDNA divergence (Alström et al. 2021).
AS 11.2	Brown-tailed Apalis	Apalis flavocincta	Yellow-breasted Apalis	Apalis flavida	Brown-tailed Apalis Apalis flavocincta (including viridiceps) is split from A. flavida based on habitat, plumage and vocal differences (Sibley & Monroe 1990; HBW/Birdlife; Borrow pers. comm.; Redman pers. comm.).
PS 11.2	Yunnan Parrotbill	Sinosuthora ricketti	Brown-winged Parrotbill	Sinosuthora brunnea	Proposed split based on DNA analysis, morphology and difference in calls (Deignan 1964; Robson 2007; Penhallurick & Robson 2009; Yeung et al. 2011; HBW/Birdlife). However, status of the little-studied nominate ssp. S. b. brunnea, which has some morphological features shared with ricketti, means further analysis of the Brown-winged Parrotbill complex is required (Eaton, pers. comm.).
AS 11.2	Grey-hooded Babbler	Cyanoderma bicolor	Chestnut-winged Babbler	Cyanoderma erythropterum	Accepted split based on plumage, bioacoustics and phylogenetic divergence (Eaton et al. 2016; HBW/Birdlife; Cros et al. 2020). Includes rufum.
AS 11.2	Visayan Babbler	Sterrhoptilus affinis	Black-crowned (Calabarzon) Babbler	Sterrhoptilus nigrocapitatus	Accepted split based on substantial phylogenetic divergence and paraphyly, as well as consistent plumage differences (Hosner et al. 2018).
AS 11.2	Sunda Scimitar Babbler	Pomatorhinus bornensis	Javan (Chestnut-backed) Scimitar Babbler	Pomatorhinus montanus	Accepted split based on substantial vocal differences and fairly distinct plumage (Eaton et al. 2016).
AS 11.2	Malayan Black-capped Babbler, Bornean Black-capped Babbler	Pellorneum nigrocapitatum, Pellorneum capistratoides	Javan Black-capped Babbler	Pellorneum capistratum	Accepted split of P. nigrocapitatum and P. capistratoides (including morrelli) from P. capistratum on the basis of pronounced vocal, plumage and genome-wide differences (Puan et al. 2020; Eaton et al. 2021, HBW/Birdlife).
AS 11.2	Green-fronted White-eye	Zosterops minor	Black-fronted White-eye	Zosterops chrysolaemus	Accepted split based on distinct morphological differences (Beehler & Pratt 2016; Gregory 2017). Includes rothschildi as a subspecies. Note that the species epithet "minor" follows the split form, while the name "chrysolaemus" is assigned to the form retaining the original English name.
AS 11.2	Oya Tabu White-eye	Zosterops crookshanki	Capped White-eye	Zosterops fuscicapilla	Accepted split based on morphological and vocal differences (Beehler & Pratt 2016; Gregory 2017).
AS 11.2	Bougainville White-eye	Zosterops hamlini	Grey-throated White-eye	Zosterops rendovae	Accepted split based on phylogenetic divergence and morphological differences (Moyle et al. 2009; Gregory 2017).
AS 11.2	Guadalcanal White-eye	Zosterops oblitus	Grey-throated White-eye	Zosterops rendovae	Accepted split based on deep phylogenetic divergence (Manthey et al. 2020).
AS 11.2	Palawan Fairy-bluebird	Irena tweeddalii	Asian Fairy-bluebird	Irena puella	Accepted split based on phylogenetic divergence and morphometric and plumage differences (HBW/BLI; Moltesen et al. 2012; Allen 2020).
PS 11.2	Visayan Fairy-bluebird, Mindanao Fairy-bluebird	Irena ellae, Irena melanochlamys	Luzon (Philippine) Fairy-bluebird	Irena cyanogastra	Proposed splits based on phylogenetic divergence and differences in plumage (Moltesen et al. 2012; Hosner et al. 2018).
AS 11.2	Siamese Pied Myna, Javan Pied Myna	Gracupica floweri, Gracupica jalla	(Indian) Pied Myna	Gracupica contra	Accepted splits based on genetic divergence and morphological features. G. floweri and G. jalla are monotypic. G. contra includes superciliaris as a subspecies and sordida synonymized with the nominate (Baveja et al. 2020).
AS 11.2	Visayan Rhabdornis	Rhabdornis rabori	Stripe-breasted Rhabdornis	Rhabdornis inornatus	Accepted split based on plumage and structural differences (Collar 2011b; Allen 2020; HBW/Birdlife; Clements).
AS 11.2	Tanzanian Illadopsis	Illadopsis distans	Pale-breasted Illadopsis	Illadopsis rufipennis	Split Illadopsis distans from I. rufipennis based on morphological and bioacoustic differences (Zimmerman et al. 1996; Sinclair & Ryan 2003; Nguembock et al. 2009; HBW/Birdlife).
AS 11.2	Dayak Blue Flycatcher	Cyornis montanus	Javan Blue Flycatcher	Cyornis banyumas	Accepted split based on vocal, plumage and morphometric traits (Eaton et al. 2016; Gwee et al. 2019).
AS 11.2	Sumba Jungle Flycatcher	Cyornis stresemanni	Flores (Russet-backed) Jungle Flycatcher	Cyornis oscillans	Accepted split based on plumage, structural and vocal differences (Eaton et al. 2016, 2021; HBW/Birdlife).
AS 11.2	Crocker Jungle Flycatcher	Cyornis ruficrissa	Rufous-tailed Jungle Flycatcher	Cyornis ruficauda	Accepted split based on bioacoustic differences. Includes ssp. isola (Gwee et al. 2019; Eaton et al. 2016).
AS 11.2	Sulu Jungle-flycatcher	Cyornis ocularis	Rufous-tailed Jungle Flycatcher	Cyornis ruficauda	Accepted split based on vocalizations and distinctive eye-ring color (Gwee et al. 2019; Allen 2020).
AS 11.2	Chinese Vivid Niltava	Niltava oatesi	Taiwan Vivid Niltava	Niltava vivida	Accepted split based on morphometric, plumage, and bioacoustic differences (Rasmussen & Anderton 2005; HBW/Birdlife). English names tentative.
AS 11.2	Short-tailed Akalat	Sheppardia poensis	Bocage's Akalat	Sheppardia bocagei	Sheppardia poensis (including ssp granti, kungwensis, kaboboensis, and schoutedeni) is split from Sheppardia bocagei based on significant bioacoustic, morphological, and habitat differences (Prigogine 1987; Borrow & Demey 2001; HBW/Birdlife).
AS 11.2	Okinawa Robin	Larvivora namiyei	Ryukyu Robin	Larvivora komadori	Accepted split based on deep genetic divergence coupled with bioacoustic and morphological differences (Saitoh et al. 2015; Brazil 2018; HBW/Birdlife).
PS 11.2	Izu Robin	Larvivora tanensis	Japanese Robin	Larvivora akahige	Proposed split based on morphological, bioacoustic and habitat differences (Brazil 2018; HBW/Birdlife).
AS 11.2	Ryukyu Flycatcher	Ficedula owstoni	Narcissus Flycatcher	Ficedula narcissina	Accepted split based on genetic and bioacoustic differences (Leader et al. 2013; Dong et al. 2015; Saitoh et al. 2015; Brazil 2018; HBW/Birdlife). Treat as monotypic following Ornithological Society of Japan (2000). Includes ssp. shonis and jakuschima.
AS 11.2	Atlas Wheatear	Oenanthe seebohmi	Northern Wheatear	Oenanthe oenanthe	Split based on striking differences in plumage and some bioacoustic differences (Shirihai & Svensson 2018; HBW/Birdlife).
PS 11.2	Rusty-breasted Wheatear	Oenanthe frenata	Buff-breasted (Red-breasted) Wheatear	Oenanthe bottae	Proposed split based on morphological differences (HBW/Birdlife).
AS 11.2	Maghreb Wheatear	Oenanthe halophila	Mourning Wheatear	Oenanthe lugens	Accepted split based on differences in degree of sexual dimorphism, song, and habitat (Shirihai & Svensson 2018).
AS 11.2	Basalt Wheatear	Oenanthe warriae	Mourning Wheatear	Oenanthe lugens	Accepted split based on unique habitat, apparent lack of mixing, and distinctive plumage (Shirihai & Svensson 2018).
AS 11.2	Javan Leafbird	Chloropsis cochinchinensis	Blue-winged Leafbird	Chloropsis moluccensis	Accepted split of Chloropsis cochinchinensis of Java and the widespread Blue-winged Leafbird C. moluccensis based on differences in plumage and deep mtDNA divergence (Moltesen et al. 2012; HBW/BLI; Eaton et al. 2016). Note change of scientific name of Blue-winged Leafbird with the split.
AS 11.2	Greyish-crowned Leafbird	Chloropsis lazulina	Orange-bellied Leafbird	Chloropsis hardwickii	Accepted split based on phylogenetic divergence and plumage differences. Includes ssp. melliana (HBW/BLI; Moltesen et al. 2012)
AS 11.2	Flame-crowned Flowerpecker	Dicaeum kampalili	Yellow-crowned Flowerpecker	Dicaeum anthonyi	Accepted split based on plumage differences (HBW/BLI; Allen 2020). Note change of English name of D. anthonyi with the split.
PS 11.2	Northern Buzzing (Obscure) Flowerpecker	Dicaeum obscurum	Southern Buzzing (White-bellied) Flowerpecker	Dicaeum hypoleucum	Proposed split based on phylogenetic divergence, major differences in plumage, and differences in calls (Hosner et al. 2018; Allen 2020). English names under discussion.
AS 11.2	Yellow-chinned Sunbird	Anthreptes tephrolaemus	Grey-chinned Sunbird	Anthreptes rectirostris	Split based on differences in plumage and very different calls (HBW/Birdlife, Borrow in litt.).
AS 11.2	Stripe-breasted Seedeater	Crithagra striatipectus	Reichard's Seedeater	Crithagra reichardi	Accepted split based on consistent differences in plumage (Turner 2013, Turner & Pearson 2015; Dickinson & Christidis 2014; Redman pers. comm., HBW/Birdlife).
AS 11.2	Mindanao Serin	Chrysocorythus mindanensis	Indonesian (Mountain) Serin	Chrysocorythus estherae	Accepted split based on significant plumage and structural differences (HBW/Birdlife; Eaton et al 2016; Allen 2020).
AS 11.2	Cinnamon-bellied Saltator, Olivaceous Saltator	Saltator grandis, Saltator olivascens	Blue-grey (Greyish) Saltator	Saltator coerulescens	Accepted splits based on vocal and genetic differences (Chaves et al. 2013; SACC 879). S. grandis includes ssp. vigorsii, plumbiceps, yucatanensis, hesperis and brevicaudus. S. olivascens includes ssp. plumbeus and brewsteri. English names tentative pending SACC.
AS 11.1	Yungas Guan	Penelope bridgesi	Dusky-legged Guan	Penelope obscura	Split based on strong allopatry and biometric differences (Evangelista-Vargas & Silveira 2018; SACC 875).
PS 11.1	Yunnan Pheasant	Phasianus elegans	Turkestan (Common) Pheasant	Phasianus colchicus	Proposed split based primarily on mtDNA divergence (Liu et al. 2020). Monotypic.
PS 11.1	Chinese Pheasant	Phasianus torquatus	Turkestan (Common) Pheasant	Phasianus colchicus	Proposed split based primarily on mtDNA divergence (Liu et al. 2020). Polytypic. Includes torquatus, strauchi–vlangallii and formosanus groups.
AL 11.1	Vaurie's Nightjar	Caprimulgus centralasicus	European Nightjar	Caprimulgus europaeus	Taxonomic status unclear. Known only from a single specimen. Recent mtDNA studies suggest that it may be synonymous with European Nightjar C. e. plumipes (Schweizer et al. 2020; Kirwan & Schweizer 2020).
AL 11.1	Mato Grosso Swift	Chaetura viridipennis	Chapman's Swift	C. chapmani	Restoration of Mato Grosso Swift to a subspecies of Chapman's Swift is based on genetic revision of genus Chaetura (Chesser et al. 2018, SACC 841).
AS 11.1	Ashy-tailed Swift	Chaetura andrei	Vaux's Swift	C. vauxi	Accepted split of Ashy-tailed Swift from Vaux's Swift is based on genetic revision of genus Chaetura (Chesser et al. 2018, SACC 841)
AS 11.1	Diamantina Sabrewing	Campylopterus diamantinensis	Grey-breasted Sabrewing	Campylopterus largipennis	Accepted split from C. largipennis based on Lopes et al. (2017); SACC 755. English name adopted from SACC 859.
PS 11.1	"Northern" Silvery Grebe	Podiceps juninensis	"Southern" Silvery Grebe	Podiceps occipitalis	Proposed split based on morphology, non-migratory behavior, lack of distinct breeding plumage, and higher-pitched voice. English names provisional (SACC 864).
AS 11.1	Magellanic Snipe	Gallinago magellanica	South American Snipe	Gallinago paraguaiae	Accepted split based on vocalizations and displays (Miller et al. 2019; SACC 843). English names provisional.
PS 11.1	Galapagos Frigatebird	Fregata magnificens	Magnificent Frigatebird	Fregata rothschildi	Proposed split based on strong genetic differentiation between the isolated Galapagos population, F. magnificens and the widespread taxon, F. rothschildi (Hailer et al. 2011; SACC 872).
AS 11.1	Annobon Scops Owl	Otus feae	African Scops Owl	Otus senegalensis	Split based on morphological and vocal differences (Collar & Boesman 2020).
AS 11.1	Arabian Eagle-Owl	Bubo milesi	Spotted Eagle-Owl	Bubo africanus	Accepted split based on morphological and acoustic differences (Collar & Boesman 2019).
PS 11.1	Northern Olive Woodpecker	Dendropicos ruwenzori	Southern Olive Woodpecker	Dendropicos griseocephalus	Proposed split based on molecular species delimitation methods and estimates of gene flow. D. ruwenzori includes subspecies kilimensis (Fuchs et al. 2020).
AL 11.1	Northern Crested Caracara	Caracara cheriway	(Southern) Crested Caracara	Caracara plancus	Accepted lump based on short genetic distance and indiscriminately mixed plumage characters in their area of overlap (SACC 878).
AS 11.1	Ornate Pitta	Pitta concinna	Elegant Pitta	Pitta elegans	Split based on bioacoustic and plumage differences. Parent species, P. elegans, retains its original English name (Yue et al. 2020).
AS 11.1	Banda Sea Pitta	Pitta vigorsii	Elegant Pitta	Pitta elegans	Split based on bioacoustic and plumage differences (Yue et al. 2020).
PL 11.1	Scalloped Woodcreeper	Lepidocolaptes falcinellus	Scaled Woodcreeper	Lepidocolaptes squamatus	Proposed lump based on minor plumage differences, vocal (call) similarities, and lack of genetic data (SACC 881).
AL 11.1	Layard's Woodcreeper	Lepidocolaptes layardi	Rondonia Woodcreeper	Lepidocolaptes fuscicapillus	Accepted lump based on lack of significant vocal and genetic differences. English name of the fused species ultimately to be determined but treat as Rondonia Woodcreeper for now (SACC 868).
AS 11.1	Chinchipe Spinetail	Synallaxis chinchipensis	Necklaced Spinetail	Synallaxis stictothorax	Accepted split based on morphological and vocal distinctions (Stopiglia et al. 2020; SACC 882).
AS 11.1	Northern Rufous-winged Antwren	Herpsilochmus frater	Southern Rufous-winged Antwren	Herpsilochmus rufimarginatus	Split based on significant vocal differences and some phenotypic differences. English names tentative. H. frater includes exiguus as a subspecies (Boesman 2016; SACC 870).
AS 11.1	Utcubamba Tapaculo	Scytalopus intermedius	Blackish Tapaculo	Scytalopus latrans	Accepted split from Blackish Tapaculo to which it is only distantly related. More closely related to Large-footed Tapaculo, S. macropus (Cadena et al. 2020; SACC 858).
AS 11.1	Turkestan Short-toed Lark	Alaudala heinei	Lesser (Mediterranean) Short-toed Lark	Alaudala rufescens	Split based on phylogenetic divergence (Alström et al. 2020). Includes aharonii, pseudobaetica and persica.
AS 11.1	Rufous Limestone Babbler	Gypsophila calcicola	Limestone Wren-Babbler (Variable Limestone Babbler)	Gypsophila crispifrons	Split based on molecular phylogeny and bioacoustic differences (Gwee et al. 2020).
AS 11.1	Annam Limestone Babbler	Gypsophila annamensis	Limestone Wren-Babbler (Variable Limestone Babbler)	Gypsophila crispifrons	Split based on molecular phylogeny and bioacoustic differences (Gwee et al. 2020).
PS 11.1	"Coal-black" Thrush	Turdus anthracinus	Chiguanco Thrush	Turdus chiguanco	Proposed split based on genetic and morphological differences (SACC 871).
AS 11.1	Taiwan Bullfinch	Pyrrhula owstoni	Grey-headed Bullfinch	Pyrrhula erythaca	Accepted split based on phylogenetic, morphological and vocal differences (Dong et al. 2020).
AS 11.1	Bonin Greenfinch	Chloris kittlitzi	Grey-capped Greenfinch	Chloris sinica	Accepted split based on deep genetic divergence and morphological differences (Saitoh et al. 2015; Saitoh et al. 2020).
AS 11.1	Yungas Sparrow	Rhynchospiza dabbenei	Stripe-capped (Chaco) Sparrow	Rhynchospiza strigiceps	Accepted split based on morphological, genetic, biogeographical and vocal evidence (Areta et al. 2019; SACC 842)
AS 11.1	Moss-backed Sparrow	Arremon dorbignii	Saffron-billed Sparrow	Arremon flavirostris	Accepted split based on morphological, vocal and genetic differences (Buainain et al. 2016; SACC 874).
PS 10.2	Donaldson-Smith's Turaco	Menelikornis (Tauraco) donaldsoni	White-cheeked Turaco	Menelikornis (Tauraco) leucotis	Proposed split based on genetic and phenotypic differences and parapatry/possible syntopy (Perktaş et al. 2020).
PS 10.2	Eastern Black-billed Turaco	Tauraco emini	(Western) Black-billed Turaco	Tauraco schuettii	Proposed split based on polyphyly with phenotypic differences (Perktaş et al. 2020). English names under discussion.
PS 10.2	Reichenow's Turaco	Tauraco reichenowi	Livingstone's Turaco	Tauraco livingstonii	Proposed split based on polyphyly with phenotypic differences (Perktaş et al. 2020).
NEW 11.1	White-winged Tapaculo	Scytalopus krabbei sp. nov.			New species: Krabbe, Schulenberg, Hosner, et al., 2020 (SACC 852).
NEW 11.1	Jalca Tapaculo	Scytalopus frankeae sp. nov.			New species: Krabbe, Schulenberg, Hosner, et al., 2020 (SACC 853).
NEW 11.1	Ampay Tapaculo	Scytalopus whitneyi sp. nov.			New species: Krabbe, Schulenberg, Hosner, et al., 2020 (SACC 854).
AS 11.1	Loja Tapaculo	Scytalopus androstictus	Paramo Tapaculo	Scytalopus opacus	Accepted split based on different calls and differences in mtDNA (SACC 855).
PS 10.2	Saharan Scrub Warbler	Scotocerca saharae	'Streaked' Scrub Warbler	Scotocerca inquieta	Proposed split of allopatric Scrub Warbler populations, which differ genetically (11,5 cytb mt-DNA), by song, and morphology (Shirihai & Svensson 2018; Handbook Western Palaearctic birds). S. saharae would include ssp theresae. Recognition pending formally published paper.
NEW 10.2	Peleng Leaf Warbler	Phylloscopus suaramerdu			Proposed new species: Rheindt et al. 2020. Tentatively add as subspecies of P. poliocephalus pending evaluation of revision of the entire species complex.
NEW 10.2	Taliabu Leaf Warbler	Phylloscopus emilsalimi			Proposed new species: Rheindt et al. 202). Tentatively add as subspecies of P. poliocephalus pending evaluation of revision of the entire species complex.
AS 11.1	Sumatran Blue Robin	Myiomela sumatrana	Sunda Robin (Javan Blue Robin)	Myiomela diana	Accepted split (Ng et al. 2020).
AS 10.2	Malaysian Crested Argus	Rheinardia nigrescens	(Vietnamese) Crested Argus	Rheinardia ocellata	Accepted split based on plumage, crest morphology and color, and vocalizations (Davison et al. 2020).
PL 10.2	Canary Islands Oystercatcher	Haematopus meadewaldoi	Eurasian Oystercatcher	Haematopus ostralegus	Treat as a distinctive subspecies (Senfeld et al. 2019).
AS 10.2	White-faced Plover	Charadrius dealbatus	Kentish Plover	Charadrius alexandrinus	Recent phylogenetic studies support treating C. dealbatus as a separate species (Sadanandan et al. 2019; Wang et al. 2019).
PS 10.2	Great White Heron	Ardea occidentalis	Great Blue Heron	Ardea herodias	Proposed split of white morph subspecies based on analyses of assortative mating (McGuire et al. 2019; NACC 2020-A-10). Declined by NACC.
PS 10.2	Haida Gwaii Saw-whet Owl	Aegolius brooksi	Northern Saw-whet Owl	Aegolius acadicus	Proposed split based on molecular evidence of limited gene flow and phenotypic differences. NACC 2020-B-8. Declined by NACC.
AL 10.2	Tawny Piculet	Picumnus fulvescens	Ochraceous Piculet	Picumnus limae	Tentatively treat as a distinctive subspecies. (Lima et al. 2020, SACC 845)
AS 10.2	Fine-banded Woodpecker	Campethera taeniolaema	Tullberg's Woodpecker	Campethera tullbergi	Campethera taeniolaema is split from allopatric Campethera tullbergi based on genetic and plumage differences. Fuchs et al. (2017).
AS 10.2	Western Fire-eye	Pyriglena maura	White-backed (East Amazonian) Fire-eye	Pyriglena leuconota	Split Western Fire-eye from White-backed Fire-eye. (Isler & Maldonado-Coelho 2017; SACC 759).
AS 10.2	Tapajos Fire-eye	Pyriglena similis	White-backed (East Amazonian) Fire-eye	Pyriglena leuconota	Split Tapajos Fire-eye from White-backed Fire-eye. (Isler & Maldonado-Coelho 2017; SACC 759).
PS 10.2	Black-headed Fruiteater	Pipreola tallmanorum	Green-and-black Fruiteater	Pipreola riefferii	Potential split, but not subjected to molecular studies. (Sibley & Monroe 1990; Berv & Prum 2014).
PS 10.2	Venezuelan Fruiteater	Pipreola melanolaema	Green-and-black Fruiteater	Pipreola riefferii	Potential split. Berv & Prum (2014).
AS 10.2	Opalton Grasswren	Amytornis rowleyi	Striated Grasswren	Amytornis striatus	Accepted split. (Christidis et al. 2013; Black et al. 2020 a, b). English name Opalton Grasswren follows Black et al. (2020 a, b). Assigned the English name Rusty Grasswren by others (Christidis et al. 2013; Dickinson & Christidis 2014).
AS 10.2	Rufous Grasswren	Amytornis whitei	Striated Grasswren	Amytornis striatus	Accepted split Polytypic. (Black et al. 2020 a, b). English name of this polytypic species follows Black et al. (2020 a, b). Includes whitei, oweni, and newly described parvus and aenigma
NEW 10.2	Taliabu Myzomela	Myzomela wahe			Accepted new species. Rheindt et al. (2020).
AL 10.2	Northwestern Crow	Corvus caurinus	American Crow	Corvus brachyrhynchos	Slager et al. 2020; NACC 2020-C-15
AS 10.2	Palawan Drongo	Dicrurus palawanensis	Hair-crested Drongo	Dicrurus hottentottus	Accepted split. Includes ssp. cuyensis. Shakya et al. (2020).
NEW 10.2	Peleng Fantail	Rhipidura habibiei			Accepted as a new species in the Sulawesi Fantail complex as proposed in Rheindt et al. (2020).
AS 10.2	Solomons Robin	Petroica polymorpha	Pacific (Mayr's) Robin	Petroica pusilla	Solomon Robin is an accepted split from Pacific Robin. Includes polymorpha, septentrionalis, kulambangrae, and dennisi. The remaining subspecies taxa from Vanuatu, Fiji and Samoa, remain in P. pusilla with the revised English name of Mayr's Robin. Kearns et al. (2020).
AS 10.2	Seram Bush Warbler	Locustella musculus	Sulawesi (Chestnut-backed) Bush Warbler	Locustella castanea	Rheindt et al. (2020).
NEW 10.2	Taliabu Bush Warbler	Locustella portenta			Accepted new species. Rheindt et al. (2020).
AS 10.2	Western Subalpine Warbler	Curruca iberiae	(Eastern) Subalpine Warbler	Curruca cantillans	Western Subalpine Warbler is split from C. cantillans following Zuccon et al. (2020) and Svensson (2013a,b).
AS 10.2	Yellow-eyed Bristlebill	Bleda ugandae	Yellow-lored Bristlebill	Bleda notatus	Accepted split based on phylogenetic and phenotypic differences Huntley & Voelker (2016).
AS 10.2	Grey-cheeked Bulbul	Alophoixus tephrogenys	Brown-cheeked Bulbul vs Melodius Bulbul	Alophoixus bres	Accepted split based on phylogenetic and phenotypic differences Shakya et al. (2020). Note that English name, Grey-cheeked Bulbul, formerly assigned to A. bres, becomes associated with this, the split species. English name of A. bres to be determined.
AS 10.2	Penan Bulbul	Alophoixus ruficrissus	Ochraceous Bulbul	Alophoixus ochraceus	Accepted split based on phylogenetic and phenotypic differences Shakya et al. (2020). English name to be determined.
AS 10.2	Pale-faced Bulbul	Pycnonotus leucops	Flavescent Bulbul	Pycnonotus flavescens	Accepted split based on phylogenetic and phenotypic differences (Dejtaradol et al. 2016; Eaton et al. 2016).
PS 10.1	Schuett's Spurfowl	Pternistis schuetti	Scaly Spurfowl	P. squamatus	Proposed (10.1) split of Schuett's Spurfowl based on revision of genus Pternistis (Mandiwana-Neudani et al. 2019). STET SSP pending continuing research. Includes ssp maranensis
PS 10.1	Cranch's Spurfowl	Pternistis cranchi	Red-necked Spurfowl	P. afer	Proposed (10.1) split of Cranch's Spurfowl based on revision of genus Pternistis (Mandiwana-Neudani et al. 2019). Takes into account complex hybridization. STET SSP pending continuing research.
PL 10.1	Black-fronted Francolin	Pternistis atrifrons	Chestnut-naped Francolin	P. castaneicollis	Black-fronted Francolin was split from Chestnut-naped Francolin P. castaneicollis (Töpfer et al. 2014). Treated as subspecies by Mandiwana-Newdani et al. (2019) absent DNA metric. STET SP pending continuing research
AL 10.1	Hoogerwerf's Pheasant	Lophura hoogerwerfi	Salvadori's Pheasant	L. inornata	Overdue lump of poorly known species originally based on minor differences between females; males indistinguishable (Sözer et al. 2006, HBW, Eaton et al. 2016). Treat as SSP.
AS 10.1	Hudsonian Whimbrel	Numenius hudsonicus	(Eurasian) Whimbrel	N. phaeopus	Genomic phylogeography separates Nearctic whimbrels as a deep monophyletic clade with distinct plumage (Sangster et al. 2011, Tan et al. 2019). Similar vocals need study.
NEW 10.1	Whistling Long-tailed Cuckoo	Cercococcyx lemaireae	Dusky Long-tailed Cuckoo	C. mechowi	Morphologically 'identical' western populations proposed (10.1) to be recognized as a new species Cercococcyx lemaireae based on song and call differences from C. mechowi (first noted by Dowsett-Lemaire 1997) (Boesman & Collar 2019). Apparent narrow hybrid zone in Bakossi Mountains, Cameroon. Await genetics and playback responses.
AS 10.1	Maghreb Owl	Strix mauritanica	Tawny Owl	S. aluco	Accepted split (10.1) based on morphology, genetics and vocals (Brito 2005, Doña et al. 2015, Robb 2015)
AS 10.1	Sunda Owlet	Glaucidium sylvaticum	Collared Owlet	G. brodiei	Accepted split (10.1) of Sunda Owlet (G. sylvaticum) from Collared Owlet (G. brodiei; Gwee et al. 2019) largely on the basis of the primary song type, which is shared by Sumatran sylvaticum and Bornean borneense but distinctly different from that shared by the widespread continental nominate and Taiwanese pardalotum.
AS 10.1	Butterfly Coquette	Lophornis verreauxii	Festive Coquette	L. chalybeus	Accepted split (10.1) of widespread Amazonian verreauxii from the broadly allopatric E Brazilian chalybeus largely on the basis of different morphology, especially crest length, and vocal differences (del Hoyo and Collar 2014, Donegan et al. 2015, del Hoyo et al. 2019, SACC 833) ENG: Verreaux's Coquette?
NEW 10.1	Western Yellow-spotted Barbet	Buccanodon dowsetti	(Eastern) Yellow-spotted Barbet	B. duchaillui	Morphologically 'identical' western populations proposed (10.1) to be recognized as Buccanodon dowsetti sp. nov. based on very different vocals (first noted by Borrow & Demey 2001)(Boesman & Collar 2019). Replaces B. duchaillui west of Dahomey Gap. Await genetics and playback responses.
NEW 10.1	Alor Myzomela	Myzomela prawiradilagae	Crimson-hooded Myzomela	M. kuehni	New species closely related to M. kuehni, first reported by Trainor et al. (2012a,b) and formally described to science on the basis of a single specimen (Irham et al. 2019). Head color, song and call differ; genetic divergence weak .
AS 10.1	Cryptic Honeyeater	Microptilotis imitatrix	Graceful Honeyeater	M. gracilis	Accepted (10.1) split of allopatric imitatrix based on vocal repertoire differences and playback responses supplemented by genetic and morphology differences incl. eye color (Nielsen 2018). ENG
AS 10.1	Swinhoe's Prinia	Prinia striata	Himalayan [Striated] Prinia	P. crinigera	Accepted split (10.1) from Prinia crinigera based on non-sister status, vocal and morphological differences, and previously unrecognized sympatry in Yunnan (Alström et al. 2019). ENG
AS 10.1	Burmese Prinia	Prinia cooki	Deignan's [Brown] Prinia	P. polychroa	Accepted split (10.1) based on genetic, song, and morphological differences (Alström et al. 2019).
AS 10.1	Annam Prinia	Prinia rocki	Deignan's [Brown] Prinia	P. polychroa	Accepted split (10.1) based on genetic, song, and morphological differences (Alström et al. 2019).
NEW 10.1	Spectacled Flowerpecker	Dicaeum dayakorum			Distinctive new species informally documented by sightings and photographs (Edwards et al. 2009, Sykes and Loseby 2015, Boyd et al. 2016) and now described scientifically from the sole known specimen (Saucier et al. 2019). Basal Dicaeum.
PS 10.1	Flores Flowerpecker	Dicaeum rhodopygiale	Blood-breasted Flowerpecker	D. sanguinolentum	Proposed split of montane Flores endemic taxon from D. sanguinolentum, based on minor plumage and apparent vocal differences (Rheindt and Eaton 2019).
PS 10.1	Sumba Flowerpecker	Dicaeum wilhelminae	Blood-breasted Flowerpecker	D. sanguinolentum	Proposed split of endemic taxon of Sumba (where found at all altitudes) from D. sanguinolentum, based on moderately distinct plumage and striking vocal differences (Rheindt and Eaton 2019).
PS 10.1	Timor Flowerpecker	Dicaeum hanieli	Blood-breasted Flowerpecker	D. sanguinolentum	Proposed split of montane Timor endemic taxon from D. sanguinolentum, based on moderately distinct plumage and apparent vocal differences (Rheindt and Eaton 2019).
AS 9.2	West African Crested Tern	Thalasseus albididorsalis	Royal Tern	T. maximus	Genetic analysis supports sister relation of T. m. albididorsalis to T. bengalensis (Collinson et al. 2017). Elevation to species status would remove paraphyly. NACC 2020-A-9. ENG.
AS 10.1	Numfor Leaf Warbler	Phylloscopus maforensis	Island Leaf Warbler	P. poliocephalus	Morphologically distinct; genetics desired (Beehler & Pratt 2016, HBW). Alström et al. 2018 sampled subspecies pallescens from Kolombangara I (w Solomons). Restore poliocephalus.
AS 10.1	Biak Leaf Warbler	Phylloscopus misoriensis	Island Leaf Warbler	P. poliocephalus	Morphologically distinct; genetics desired (Beehler & Pratt 2016, HBW); not sampled by Alström et al. 2018.
AS 10.1	Eastern Black-eared Wheatear	Oenanthe melanoleuca	(Western) Black-eared Wheatear	O. hispanica	Accepted split of Eastern Black-eared Wheatear (O. melanoleuca from Western addresses genetic paraphyly in this Oenanthe species complex (Aliabadian et al. 2012, Schweizer et al. 2019, Jirle for Swedish Taxonomic Committee). Black-eared Wheatear O. hispanica currently includes two subspecies (hispanica, melanoleuca). But melanoleuca is sister to M. cypriaca and hybridizes extensively with O. pleschanka in northern Iran. Hispanica is sister to that clade.
AS 9.2	Stejneger's Scoter	Melanitta stejnegeri	White-winged Scoter	M. deglandi	Accepted split of Stejneger's Scoter M. stejnegeri from White-winged Scoter M. deglandi based on lack of hybridization and on morphological characters that include the black rather than brown flanks (deglandi also has brown tinged scapulars), a more obvious hook "nose" on stejnegeri, a longer white post-ocular mark on stejnegeri, and different bill coloration (HBW, NACC 2019-A-16 and references therein).
PS 9.2	Pacific Fulmar	Fulmarus rodgersii	Atlantic [Northern]	F. glacialis	Proposed split of Pacific Fulmar is based primarily on deep mtDNA divergence and minor morphological differences (Kerr and Dove 2013, NACC 2019-A-1 decline)
PS 9.2	Harlan's Hawk	Buteo harlani	Red-tailed Hawk	B. jamaicensis	Proposed species recognition of controversial Harlan's Hawk based many diagnosable differences (Clark 2018, NACC 2019-A-2 decline with two views of these highly variable Canadian buteos
AS 9.2	Australian Tern	Gelochelidon macrotarsa	Gull-billed Tern	G. nilotica	Accepted split of G. macrotarsa is based on morphological differences (Rogers et al. 2005, HBW, Schodde pers. comm). ENG Australian Gull-billed Tern
AS 9.2	Malagasy Palm Swift	Cypsiurus gracilis	African Palm Swift	C. parvus	Accepted split of Malagasy Palm Swift from African Palm Swift (C. parvus) based on vocalizations and plumage coloration (Mills et al. 2019). Includes griveaudi on Comoro Is
AL 9.2	Schouteden's Swift	Schoutedenapus schoutedeni	Scarce Swift	S. myioptilus	Probably are darker juvenile or sub-adult Scarce Swifts subspecies chapini (Fishpool 2019)
AS 9.2	Green-headed Hillstar	Oreotrochilus stolzmanni	Andean Hillstar	O. estella	Green-headed Hillstar is an accepted split from O. estella based on plumage differences and mtDNA relationship to O. melanogaster. SACC 808
NEW 9.2	Blue-throated Hillstar	Oreotrochilus cyanolaemus			Newly described species based on striking plumage differences from Andean Hillstar O. (estella) stolzmanni) (Somoza-Molina et al 2018). Genomic analysis of estella species complex desired (see HBW, SACC 808)
AS 9.2	Indochinese Roller	Coracias affinis	Indian Roller	C. benghalensis	Morphologically distinct Indochinese Roller may be more closely related to Purple-winged Roller (C. temmincki) than to Indian Roller separated by a narrow hybrid zone (Johansson et al. 2018, HBW)
AL 9.2	Barbary Falcon	Falco pelegrinoides	Peregrine Falcon	Falco peregrinus	Barbary Falcon is genetically similar to other subspecies of Peregrine Falcon and is deeply embedded in the Peregrine Falcon complex (White et al. 2013, H&M4, Fuchs et al. 2015, Wink 2015, HBW Alive).
AS 9.2	Small-headed Elaenia	Elaenia sordida	Highland Elaenia	E. obscura	Elaenia sordida is split from Highland Elaenia based on mtDNA genetics and vocals (Rheindt et al. 2008, Minns 2017, HBW, SACC 806). English name follows SACC.
AS 9.2	Ceara Woodcreeper	Xiphorhynchus atlanticus	Lesser Woodcreeper	X. fuscus	Accepted split of monotypic Atlantic Woodcreeper is based on genetic, morphological and vocal distinctions (Cabanne et al. 2014, Garcia et al. 2017, SACC 659, 809, HBW). ENG: Nordeste, Ceara?
AL 9.2	Negro Stipple-throated Antwren	Epinecrophylla pyrrhonota	Napo Stipple-throated Antwren	E. haematonota	Negro Stipple-throated Antwren was split from [Napo] Stipple-throated Antwren (Whitney et al. 2013e, SACC 589A), but vocalizations are identical and morphological differences slight (Isler and Whitney 2018, SACC 817). ENG Epinecrophylla spp become Stipplethroats
AL 9.2	Yasuni Stipple-throated Antwren	Epinecrophylla fjeldsaai	Napo Stipple-throated Antwren	E. haematonota	Yasuni Stipple-throated Antwren was split from [Napo] Stipple-throated Antwren (Whitney et al. 2013e, SACC 589A), but vocalizations are identical and morphological differences slight (Isler and Whitney 2018, SACC 817)
AS 9.2	Biak Whistler	Pachycephala (Colluricincla) melanorhyncha	Arafura [Little] Shrikethrush	C. megarhyncha	The endemic Biak Little 'Shrikethrush' C. m. melanorhyncha is a whistler, sister to Pachycephala phaionota (Marki et al. 2018). Move from Colluricincla to species of Pachycephala. Rename.
AS 9.2	Sepik-Ramu Shrikethrush	Colluricincla tappenbecki	Arafura [Little] Shrikethrush	C. megarhyncha	The following accepted splits (9.2) of the Little Shrikethrush species complex are based on genetics and morphology (Marki et al. 2018, Schodde pers. comm). Proposed split (9.2) of Sepik-Ramu Shrikethrush C. tappenbecki includes ssp madaraszi and maeandrina
AS 9.2	Rufous Shrikethrush	Colluricincla rufogaster	Arafura [Little] Shrikethrush	C. megarhyncha	Accepted split of Rufous Shrikethrush C. rufogaster includes ssp griseata and goodsoni. Ssp aelptes is included in goodsoni; gouldii and synaptica are included in nominate rufogaster
AS 9.2	Tagula Shrikethrush	Colluricincla discolor	Arafura [Little] Shrikethrush	C. megarhyncha	Monotypic
AS 9.2	Mamberamo Shrikethrush	Colluricincla obscura	Arafura [Little] Shrikethrush	C. megarhyncha	Monotypic; includes ssp hybridus
AS 9.2	Waigeo Shrikethrush	Colluricincla affinis	Arafura [Little] Shrikethrush	C. megarhyncha	Monotypic
AS 9.2	Variable Shrikethrush	Colluricincla fortis	Arafura [Little] Shrikethrush	C. megarhyncha	Includes ssp trobriandi (??) and despecta (includes neos and superflua)
NEW 9.2	Cream-eyed Bulbul	Pycnonotus pseudosimplex	Cream-vented Bulbul	P. simplex	Cream-eyed Bulbul P. pseudosimplex is a newly described species previously known as an eye-color morph of Cream-vented Bulbul P. simplex perplexus on Borneo. Cream-eyed Bulbul is a genetically distinct sister to Ashy-fronted Bulbul P. cinereifrons of Palawan (Shakya et al. 2019).
AS 9.2	Morotai White-eye	Zosterops dehaani	Cream-throated White-eye	Z. atriceps	Proposed split of Morotai White-eye is based on distinct plumage, exceptional dawn song and submontane/montane ecology (Rheindt and Eaton 2018)
AS 9.2	Wakatobi White-eye	Zosterops flavissimus	Lemon-bellied White-eye	Z. chloris	Accepted split of Wakatobi White-eye is based on morphology, genetics, and vocalizations (O'Connell et al. 2019)
PS 9.2	Saint Lucia Thrasher	Ramphocinclus sanctaeluciae	White-breasted Thrasher	R. brachyurus	Proposed split of Saint Lucia Thrasher is based on molecular phylogenetics (DaCosta et al. 2019). Await research in progress
AS 9.2	Campina Thrush	Turdus arthuri	Black-billed Thrush	T. ignobilis	Campina Thrush is an accepted split from Black-billed Thrush T. ignobilis justified by sympatry without intergradation at two Colombian localities (Cerqueira et al. 2016, Avendaño et al. 2017, Stiles and Avendaño 2019, SACC 814).
AS 9.2	Pantepui Thrush	Turdus murinus	Black-billed Thrush	T. ignobilis	Pantepui Thrush is an accepted split from Black-billed Thrush T. ignobilis based on genetic divergence (Cerqueira et al. 2016, Avendaño et al. 2017, Stiles and Avendaño 2019, SACC 814).
PS 9.2	Philippine Shortwing	Brachypteryx poliogyna	White-browed Shortwing	B. montana	Philippine and Indonesian members of the White-browed Shortwing species complex are proposed splits from the Oriental mainland taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Await full analysis of island taxa.
PS 9.2	Sumatran Shortwing	Brachypteryx saturata	White-browed Shortwing	B. montana	Philippine and Indonesian members of the White-browed Shortwing species complex are proposed splits from the Oriental mainland taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic. Await full analysis of island taxa.
PS 9.2	Bornean Shortwing	Brachypteryx erythrogyna	White-browed Shortwing	B. montana	Philippine and Indonesian members of the White-browed Shortwing species complex are proposed splits from the Oriental mainland taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic. Await full analysis of island taxa.
PS 9.2	Flores Shortwing	Brachypteryx floris	White-browed Shortwing	B. montana	Philippine and Indonesian members of the White-browed Shortwing species complex are proposed splits from the Oriental mainland taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic. Await full analysis of island taxa.
AS 9.2	Hill Blue Flycatcher	Cyornis whitei	Javan [Hill] Blue Flycatcher	C. banyumas	C. whitei is an accepted split from C. banyumas based on genetics and vocalizations (Zhang et al. 2016, Gwee et al. 2019. Note transfer of established English name Hill Blue Flycatcher to C. whitei.
PS 9.2	Dayak Blue Flycatcher	Cyornis montanus	Javan [Hill] Blue Flycatcher	C. banyumas	A Borneo endemic, the Dayak Blue Flycatcher is a proposed split from Javan [Hill] Blue Flycatcher based on vocalizations (Gwee et al. 2019). STET, pending current studies (Sheldon pers. comm.)
AS 9.2	Indochinese Blue Flycatcher	Cyornis sumatrensis	Tickell's Blue Flycatcher	C. tickelliae	Widespread Indochinese Blue Flycatcher is a proposed split from Tickell's Blue Flycatcher based on morphology and vocalizations (Rasmussen & Anderton 2005, Gwee et al. 2019, HBW)
PL 9.2	Tanahjampea Blue Flycatcher	Cyornis djampeanus	Sulawesi Blue Flycatcher	C. omissus	Taxonomic status and relationships of Tanahjampea Blue Flycatcher are uncertain (Gwee et al. 2019). Stet species for now
PS 9.2	Kalao Blue Flycatcher	Cyornis kalaoensis	Sulawesi Blue Flycatcher	C. omissus	Kalao Blue Flycatcher is a proposed split based on vocalizations (Gwee et al. 2019).
PS 9.2	Crocker Jungle Flycatcher	Cyornis ruficrissa	Rufous-tailed Jungle Flycatcher	C. ruficauda	Proposed split of Borneo subspecies of Rufous-tailed Jungle Flycatcher as Crocker Jungle Flycatcher C. ruficrissa based on vocalizations, but status uncertain (Gwee et al. 2019).
PS 9.2	Sulu Jungle Flycatcher	Cyornis ocularis	Rufous-tailed Jungle Flycatcher	C. ruficauda	Proposed split of Rufous-tailed Jungle Flycatchers on Sulu Arch as Sulu Jungle Flycatcher (C. ocularis) based on vocalizations (Gwee et al. 2019)
AS 9.2	Yucatan Gnatcatcher	Polioptila albiventris	White-lored Gnatcatcher	P. albiloris	Accepted split of Yucatan Gnatcatcher P. albiventris from White-lored Gnatcatcher is based on genetic and vocal distinctions (Smith et al 2018; NACC 2019-C-7, E-6a).
AS 9.2	Nicholson's Pipit	Anthus nicholsoni	Long-billed Pipit	A. similis	Accepted split of South African pops of Long-billed Pipit is based on their allopatric distributions (southern and East African populations separated by ca. 1 800 km), their non-migratory nature and their high cyt b sequence divergence values (Pietersen et al. 2018)
AL 9.1	Chaco Nothura	Nothura chacoensis	Spotted Nothura	N. maculosa	Treat Chaco Nothura as a subspecies of Spotted Nothura (Hayes et al. 2018, SACC 782)
SSP 9.1	Whenua Hou Diving Petrel	Pelecanoides whenuahouensis	South Georgia Diving Petrel	P. georgicus	Proposed split of (endangered) Whenua Hou Diving Petrel based primarily on slight phenotypic differences (Fischer et al. 2018). Treat provisionally as ssp of georgicus pending vocal and genetic diagnoses
AS 9.1	Rote Boobook	Ninox rotiensis	Australian [Southern] Boobook	N. boobook	Accepted split from Southern Boobook N. boobook based on genetics and vocals (Gwee et al. 2017)
AS 9.1	Timor Boobook	Ninox fusca	Australian [Southern] Boobook	N. boobook	Accepted split from Southern Boobook N. boobook based on genetics and vocals (Gwee et al. 2017)
AS 9.1	Alor Boobook	Ninox plesseni	Australian [Southern] Boobook	N. boobook	Accepted split from Southern Boobook N. boobook based on genetics and vocals (Gwee et al. 2017)
AS 9.1	Buru Boobook	Ninox hantu	Seram [Hantu] Boobook	N. squamipila	Accepted split of Buru Boobook from unrelated Seram Boobook based on genetics and vocals (Gwee et al. 2017). ENG Rename N. squamipila
AS 9.1	Green-backed Hillstar	Urochroa leucura	Rufous-gaped [White-tailed] Hillstar	U. bougueri	Green-backed Hillstar is a proposed (9.1) split from White-tailed Hillstar, renamed Rufous-gaped Hillstar (HBW Alive, Donegan et al. 2015; SACC 775, 800).
NEW 9.1	Dry-forest Sabrewing	Campylopterus calcirupicola	Grey-breasted Sabrewing	C. largipennis	Dry-forest Sabrewing is a proposed (9.1) new member of the Campylopterus largipennis species complex (Lopes et al. 2017). SACC 755, 756 and HBW accept with species status. ENG Limestone Sabrewing?
AS 9.1	Chiriqui Foliage-gleaner	Automolus exsertus	Buff-throated Foliage-gleaner	A. ochrolaemus	Chiriqui Foliage-gleaner is split from widespread Buff-throated Foliage-gleaner based on vocals (incl. playback expts), and mtDNA divergence (Freeman and Montgomery 2017, NACC 2018-A-2)
AS 9.1	Rufous-breasted Antpitta	Grallaricula leymebambae	Rusty-breasted Antpitta	G. ferrugineipectus	Van Doren et al. 2018, SACC 784 accepted
AS 9.1	Tapajos Antpitta	Myrmothera subcanescens	Thrush-like Antpitta	M. campanisona	Carneiro et al. 2018; SACC 785 accepted .
AS 9.1	Spotted Scrubwren	Sericornis maculatus	White-browed Scrubwren	S. frontalis	Accepted split follows comprehensive revision of scrubwrens and allies (Norman et al. 2018)
AS 9.1	Albertine Sooty Boubou	Laniarius holomelas	Mountain Sooty Boubou	L. poensis	Accepted split supported by eye color, vocals and preliminary DNA evidence (Voelker et al. 2010, H&M4, HBW).
NEW 9.1	Western Square-tailed Drongo	Dicrurus occidentalis	[Common] Square-tailed Drongo	D. ludwigii	Western Square-tailed Drongo is a newly described species embedded in D. ludwigii but sister to newly split Sharpe's Drongo (Fuchs et al. 2018). ENG
AS 9.1	Sharpe's Drongo	Dicrurus sharpei	[Common] Square-tailed Drongo	D. ludwigii	Sharpe's Drongo (including elgonensis, synonym) is a proposed split from Square-tailed Drongo D. ludwigii based on plumage color and genetic lineage (Fuchs et al. 2018).
AS 9.1	Fanti Drongo	Dicrurus atactus	Velvet-mantled Drongo	D. modestus	Fanti Drongo is a proposed split from the Velvet-mantled Drongo coracinus/modestus complex (Fuchs et al. 2017). ENG
AS 9.1	Glossy-backed Drongo	Dicrurus divaricatus	Fork-tailed Drongo	D. adsimilis	Glossy-backed Drongo D. divaricatus is a proposed split from the Fork-tailed Drongo species complex (Fuchs et al. 2017). D. adsimilis would retain ssp fugax. ENG
PS 9.1	Clancey's Drongo	Dicrurus apivorus	Fork-tailed Drongo	D. adsimilis	Clancey's Drongo D.a. apivorus is a proposed split from the Fork-tailed Drongo species complex (Fuchs et al. 2017).
AL 9.1	Erlanger's Lark	Calandrella erlangeri	Blanford's Lark	C. blanfordi	Treat Erlanger's Lark as a subspecies of Blanford's Lark (Stervander et al 2016)
AS 9.1	Rufous-capped Lark	Calandrella eremica	Blanford's Lark	C. blanfordi	Accepted split of Rufous-capped Lark from Blanford's Lark. Includes daaroodensis (Stervander et al. 2016)
AL 9.1	Steppe Grey Shrike	Lanius pallidirostris	Great Grey Shrike	L. excubitor	Lanius pallidirostris is split from Lanius excubitor (King 1997, Hernández et al. 2004, Panov 2011) but not by HBW, Clements, H&M4. Restore to status as ssp of excubitor pending full resolution of this complex
AS 9.1	Chivi Vireo	Vireo chivi	Red-eyed Vireo	Vireo olivaceus	Chivi Vireo is split from Red-eyed Vireo based on lack of introgression and not monophyletic (Battey and Klicka 2017, NACC 2018-B-4)
NEW 9.1	Rote Leaf Warbler	Phylloscopus rotiensis			Newly described, vocally and genetically distinct species with long bill; sister to Timor Leaf Warbler P. presbytes (Ng et al. 2018)
AS 9.1	Socotra White-eye	Zosterops socotranus	Abyssinian White-eye	Z. abyssinicus	An old outlying lineage that should be split from unrelated mainland Z. abyssinicus (Cox et al . 2014). SEQ
AS 9.1	Mbulu White-eye	Zosterops mbuluensis	Montane White-eye	Z. poliogastrus	Accepted split from artificial Montane White-eye subspecies complex Z. poliogastrus (Cox 2013, Cox et al. 2014, Pearson & Turner 2017). Is sister to Z. abyssinicus flavilateralus (Cox et al 2014). Monotypic.
AS 9.1	Pale White-eye	Zosterops flavilateralis	Abyssinian White-eye	Z. abyssinicus	Accepted split from Abyssinian White-eye (Cox 2013, Cox et al. 2014, Pearson & Turner 2017). Includes jubaensis. ENG Pale Scrub White-eye?
AS 9.1	Aldabra White-eye	Zosterops aldabrensis	Malagasy White-eye	Z. maderaspatanus	Accepted split from Malagasy White-eye. Aldabra White-eye is sister to Seychelles White-eye and, in turn, Kirk's White-eye and Malagasy White-eye (Cox et al. 2014)
AS 9.1	South Pare White-eye	Zosterops winifredae	Montane White-eye	Z. poliogastrus	Accepted split from artificial Montane White-eye subspecies complex Z. poliogastrus (Cox 2013, Cox et al. 2014, Pearson & Turner 2017). Sister to Z. pallidus?
AS 9.1	Southern Yellow White-eye	Zosterops anderssoni	African Yellow White-eye	Z. senegalensis	Accepted split from African Yellow White-eye Z. senegalensis (Cox 2013, Cox et al. 2014, Pearson & Turner 2017); includes stierlingi provisionally
AS 9.1	Broad-ringed White-eye	Zosterops eurycricotus	Heuglin's [Montane] White-eye	Z. poliogastrus	Accepted split from artificial Montane White-eye subspecies complex Z. poliogastrus (Cox 2013, Cox et al. 2014, Pearson & Turner 2017). Monotypic
AS 9.1	Green White-eye	Zosterops stuhlmanni	African Yellow White-eye	Z. senegalensis	Accepted split from African Yellow White-eye Z. senegalensis (Cox 2013, Cox et al. 2014, Pearson & Turner 2017); includes ssp toroensis, scotti
AL 9.1	Mountain White-eye	Zosterops montanus	Warbling [Japanese] White-eye	Z. japonicus	Montane White-eye is a proposed lump with revised Warbling [Japanese] White-eye complex (Lim et al. 2018). ENG
AS 9.1	Swinhoe's White-eye	Zosterops simplex	Japanese White-eye	Z. japonicus	Swinhoe's White-eye is a proposed split from the revised [Warbling] Japanese White-eye complex. It would include ssp erwini and salvadorii (Lim et al. 2018)
AL 9.1	Enggano White-eye	Zosterops salvadorii	Swinhoe's White-eye	Z. simplex	Enggano White-eye (Z. salvadorii) is a weakly defined species best treated as a subspecies of Zosterops simplex (Lim et al. 2018).
AS 9.1	Hume's White-eye	Zosterops auriventer	Indian [Oriental] White-eye	Z. palpebrosus	Z. auriventer is redefined as an upland species related to Z. everetti not Z. palpebrosus (Wells 2017). Includes ssp tahanensis and wetmorei. The name auriventer is the senior name available for mainland Asian populations named Hume’s White-eye.
AS 9.1	Sangkar White-eye	Zosterops melanurus	Indian [Oriental] White-eye	Z. palpebrosus	Sangkar White-eye is a proposed split from Oriental White-eye (Lim et al. 2018). Includes ssp buxtoni
AS 9.1	Chattering Gnatwren	Ramphocaenus sticturus	Trilling [Long-billed] Gnatwren	R. melanurus	Accepted split from Long-billed Gnatwren based on phylogenetics, voice, plumage, and sympatry; includes ssp obscurus (Smith et al. 2018, SACC 790A). ENG Rename R. melanurus 'Trilling' Gnatwren
PS 9.1	Northern Gnatwren	Ramphocaenus rufiventris	[Trilling] Long-billed Gnatwren	R. melanurus	Split trans-Andean R. rufiventris (including ardeleo and sanctaemarthae) from cis-Andean R. melanurus (Smith et al. 2018, SACC 790B). Colombian forms not fully resolved. STET PS
PL 9.1	Violet-hooded Starling	Aplonis circumscripta	Metallic Starling	A. metallica	Violet-hooded Starling is a relict split in Gill & Wright 2006, recommended by Ben King. Review underway.
PS 9.1	Ethiopian Thrush	Turdus simensis	Groundscraper Thrush	T. litsitsirupa	Ethiopian Thrush is a proposed split based on deep genetic divergence, plumage and vocal differences (Nylander et al. 2008, HBW). Stet ssp pending full analysis
AS 9.1	Himalayan Shortwing	Brachypteryx cruralis	White-browed Shortwing	B. montana	The three Asian forms of White-browed Shortwing B. montana are split from Philippine and Indonesian taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018)
AS 9.1	Chinese Shortwing	Brachypteryx sinensis	White-browed Shortwing	B. montana	The three Asian forms of White-browed Shortwing B. montana are split from Philippine and Indonesian taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic
AS 9.1	Taiwan Shortwing	Brachypteryx goodfellowi	White-browed Shortwing	B. montana	The three Asian forms of White-browed Shortwing B. montana are split from Philippine and Indonesian taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic
AL 9.1	Cherrie's Tanager	Ramphocelus costaricensis	Scarlet-rumped [Passerini's] Tanager	R. passerinii	Proposal to lump Cherrie's Tanager as a subspecies of Passerini's Tanager R. passerinii is based on nondiscrimination in playback expts (Freeman and Montgomery 2017, NACC 2018-A-4). Change English name of R. passerinii to Scarlet-rumped Tanager.
PS 8.1	Ecuadorian Hermit	Phaethornis baroni	Long-billed Hermit	P. longirostris	Baron's Hermit Phaethornis baroni is treated as conspecific with Long-billed Hermit P. longirostris following SACC (136). Restoration of species status deserves reconsideration given morphological distinctions, vocal differences (see xeno-canto), allopatric range, and advances in the taxonomy of this species complex (Ridgely and Greenfield 2001, HBW). Await phylogeny?
PS 8.2	Yellow-faced Grosbeak	Caryothraustes brasiliensis	Yellow-green Grosbeak	C. canadensis	Yellow-faced Grosbeak of the Atlantic forests of Brasil is a proposed split based on morphology and vocalizations (Tonetti et al. 2017). SACC proposal?
SSP 8.2	'Trindade' Frigatebird	Fregata trinitatis	Lesser Frigatebird	F. ariel	Proposal to split endangered Lesser Frigatebirds of the Atlantic Ocean based on bone and plumage differences (Olson 2017, SACC 768). Stet SSP
NEW 8.2	Santa Marta Screech Owl	Megascops gilesi			Krabbe 2017; long awaited! SACC 769
AL 8.2	Napo Screech Owl	Megascops napensis	Roraiman Screech Owl	M. roraimae	Lump Napo Screech Owl and Roraiman Screech Owl as M. roraimae, which has precedence (Krabbe 2017). ENG Foothill Screech Owl. SACC 771
AL 8.2	Colombian Screech Owl	Megascops colombianus	Rufescent Screech Owl	M. ingens	Species status of Colombian Screech Owl Megascops colombianus re M. ingens has been uncertain (Ridgely & Greenfield 2001, H&M, BLI, and SACC). Genetics and vocals support this lump (Krabbe 2017). SACC 770
AL 8.2	Baron's Spinetail	Cranioleuca baroni	Line-cheeked Spinetail	C. antisiensis	Lump Baron's Spinetail with Line-cheeked Spinetail due to clinal intergradation (Seeholzer & Brumfield 2017, SACC 762 accepted)
AS 8.2	Rufescent Antshrike	Thamnistes rufescens	Russet Antshrike	T. anabatinus	Accepted split of Rufescent Antshrike from Russet Antshrike based on vocals and plumage (Isler & Whitney 2017, SACC 758).
NEW 8.2	Painted Manakin	Machaeropterus eckelberryi	Striolated [Western Striped] Manakin	M. striolatus	Newly desribed species based on vocalizations only (Lane et al. 2017, SACC 761). Note that previous IOC list split polytypic M. striolatus from M. regulus, which this study advocates.
NEW 8.2	Rote Myzomela	Myzomela irianawidodoae	Sumba Myzomela	M. dammermani	Newly described on the basis of morphology and vocalizations from the island of Rote in the Lesser Sundas (Eaton et al 2016, Prawiradilaga et al. 2017)
AS 8.2	White-bellied Whipbird	Psophodes leucogaster	Black-throated [Western] Whipbird	M. nigrogularis	White-bellied [Mallee] Whipbird Psophodes leucogaster (including lashmari) is split from Black-throated [Western] Whipbird P. nigrogularis including oberon (Burbidge et al. 2017). For historical background see Schodde & Mason 1999, Christidis & Boles 2008, Toon et al. 2013. English name changes follow split
AS 8.2	Taliabu Fantail	Rhipidura sulaensis	Sulawesi [Rusty-bellied] Fantail	R. teysmanni	Taliabu Fantail is a proposed split from Rusty-bellied Fantail based on genomic analysis and vocalizations (Ng et al 2017). Two sweeps of mtDNA are invoked. ENG
AS 8.2	Maghreb Magpie	Pica mauritanica	Eurasian Magpie	P. pica	Lee et al. 2003, Song et al. 2018, HBW. Monotypic
AS 8.2	Asir Magpie	Pica asirensis	Eurasian Magpie	P. pica	Lee et al. 2003, Song et al. 2018, HBW. Monotypic
AS 8.2	Black-rumped Magpie	Pica bottanensis	Eurasian Magpie	P. pica	Lee et al. 2003, Song et al. 2018, HBW. Monotypic. ENG Tibetan vs Black-rumped
AS 8.2	Oriental Magpie	Pica serica	Eurasian Magpie	P. pica	Lee et al. 2003, Song et al. 2018, HBW. Monotypic (includes anderssoni).
AS 8.2	Lesser Lophorina	Lophorina minor	Greater [Superb Bird-of-Paradise] Lophorina	L. superba	Irestedt et al. 2017; monotypic. ENG provisional
AS 8.2	Crescent-caped Lophorina	Lophorina niedda	Greater [Superb Bird-of-Paradise] Lophorina	L. superba	Irestedt et al. 2017; includes inopinata ssp nova. ENG Crescent-caped Lophorina provisional
PS 8.2	Viscaino Thrasher	Toxostoma arenicola	LeConte's Thrasher	T. lecontei	Viscaino Thrasher is a proposed split from LeConte's Thrasher based on parapatry, genetic divergence and effective reproductive isolation (Vázquez-Miranda et al. 2017, NACC 2018-C-14 decline). Stet SSP status
AS 8.2	Banggai Jungle Flycatcher	Cyornis pelingensis	Sula [Henna-tailed] Jungle Flycatcher	C. colonus	Accepted split of Banggai Jungle Flycatcher C. pelingensis from sister ssp on Sula Island based on vocal differences, genetic divergence, and restricted gene flow (Eaton et al. 2016, Garg et al. 2018). Subspecies subsolanus invalid? (HBW) .
PS 8.2	Grey-crowned Ground Sparrow	Melozone occipitalis	White-eared Ground Sparrow	M. leucotis	Grey-crowned Ground Sparrow is a proposed split from from White-eared Ground Sparrow M. leucotis based on morphometrics, vocalizations, and genetics (Sandoval 2017ab, NACC 2018-C-7 decline). STET SSP
AS 8.2	Morelet's Seedeater	Sporophila morelleti	Cinnamon-rumped [White-collared] Seedeater	S. torqueola	Sporophila morelleti (including ssp sharpei, mutanda) is an accepted split from S. torqueola based on morphology, deep genetic divergence and polyphyly (Mason et al. 2018, HBW, NACC 2018-C-8). ENG: Rename S. torqueola Cinnamon-rumped Seedeater.

AS 8.1	Sclater's Crowned Pigeon	Goura sclaterii	Scheepmaker's [Southern] Crowned Pigeon	G. scheepmakeri	HBW, Gregory 2017, Bruxaux et al. 2017. G. sclaterii is sister to G. cristata; G. scheepmakeri is sister to G. victoria.
SSP 8.1	Ecuadorian Plumeleteer	Chalybura intermedia	Bronze-tailed Plumeleteer	C. urochrysia	Species status of C. b. intermedia uncertain, but see Ridgely and Greenfield 2001. Current assignment (7.4) of subspecies to C. buffoni vs C. urochrysia is provisional
SSP 8.1	Lilacine Amazon	Amazona lilacina	Red-lored Amazon	A. autumnalis	Pilgrim 2010 unpubl, Donegan et al. 2016, HBW. Stet ssp status pending full workup
NEW 8.1	Cordillera Azul Antbird	Myrmoderus eowilsoni			Newly described, distinct species sister to M. ferrugineus (Moncrieff et al. 2018, SACC 763).
AS 8.1	Purple-backed Fairywren	Malurus assimilis	Variegated Fairywren	M. lamberti	McLean et al. 2012, 2017. Putative hybrid zone with limited gene flow. Nonsister Variegated Fairywren M. lamberti would be monotypic.
AL 8.1	Liberian Greenbul	Phyllastrephus leucolepis	Icterine Greenbul	P. icterinus	Enigmatic Liberian Greenbul is deemed to be a plumage variant of Icterine Greenbul P. icterinus (Phalan et al. 2013, Collinson et al. 2017, HBW)
AS 8.1	Sclater's Nightingale-Thrush	Catharus maculatus	'Gould's [Spotted] Nightingale-Thrush	C. dryas	Halley et al. 2017
SSP 8.1	Hainan Laughingthrush	Garrulax monachus	Black-throated Laughingthrush	G. chinensis	Wu et al. 2012, HBW. Slight genetic differences. No vocals. Didn't include similar G.c. germaini, or G. propinquus. Stet as PS subspecies of G. chinensis
SSP 8.1	Ashambu Blue Robin	Sholicola ashambuensis	White-bellied Blue Robin	S. albiventris	Described as a new species (Robin et al. 2017). More white below; vocals. English name provisional. Treat provisionally (8.1) as subspecies of S. albiventris
AS 8.1	Western Miombo Sunbird	Cinnyris gertrudis	Eastern Miombo [Double-collared] Sunbird	C. manoensis	Irwin et al. 2014, HBW, Bowie MS. Previous species name pintoi is a junior subjective synonym of gertrudis. English names under discussion
AS 8.1	Peruvian Pipit	Anthus peruvianus	Yellowish Pipit	A. lutescens	Peruvian Pipit A. peruvianus is split from Yellowish Pipit A. lutescens (Van Els and Norambuena 2017, HBW, SACC 765)
AS 8.1	Puna Pipit	Anthus brevirostris	Campos [Short-billed] Pipit	A. furcatus	Puna Pipit A. brevirostris is split from Short-billed Pipit A. furcatus (Van Els and Norambuena 2017). ENG

PS 7.3	Western Willet	Tringa inornata	[Eastern] Willet	T. semipalmata	Stet subspecies rank for now (Oswald et al. 2016. NACC 2017-A-10 decline).
AL 7.3	Thayer's Gull	Larus thayeri	Iceland Gull	L. glaucoides	Treat as subspecies of Iceland Gull (Godfrey 1986, Snell 2002, NACC 2017-C-7)
PL 7.3	Fork-tailed Drongo-Cuckoo	Surniculus dicruroides	Square-tailed Drongo-Cuckoo	S. lugubris	H&M4, Eaton et al. 2016. Species limits of drongo-cuckoos uncertain. Stet for now
AS 7.3	Plume-toed Swiftlet	Collocalia affinis	Glossy Swiftlet	C. esculenta	Rheindt et al. 2017. English name provisional. Includes elachyptera, cyanoptila, vanderbilti, oberholseri
AS 7.3	Christmas Island Swiftlet	Collocalia natalis	Glossy Swiftlet	C. esculenta	Rheindt et al. 2017. Monotypic
AS 7.3	Ridgetop Swiftlet	Collocalia isonota	Glossy Swiftlet	C. esculenta	Rheindt et al. 2017. Includes bagabo
AS 7.3	Grey-rumped Swiftlet	Collocalia marginata	Glossy Swiftlet	C. esculenta	Rheindt et al. 2017. Includes septentrionalis
AS 7.3	Tenggara Swiftlet	Collocalia sumbawae	Glossy Swiftlet	C. esculenta	Rheindt et al. 2017. Includes sumbae
AS 7.3	Drab Swiftlet	Collocalia neglecta	Glossy Swiftlet	C. esculenta	Rheindt et al. 2017. Includes perneglecta
AS 7.3	Satin Swiftlet	Collocalia uropygialis	Glossy Swiftlet	C. esculenta	Rheindt et al. 2017. Includes albidior
DEL 7.3	Bogota Sunangel	Heliangelus zusii	Hybrid Long-tailed Sylph (Aglaiocercus kingii) X ???		Pérez-Emán et al. 2017
SSP 7.3	Mesoamerican Flicker	Colaptes mexicanoides	Northern Flicker	C. auratus	Stet subspecies for now (Manthey et al. 2017; NACC 2017-C-4)
PS 7.3	Malee Whipbird	Psophodes leucogaster	Western Whipbird	P. nigrogularis	Burbidge et al. 2017; includes ssp lashmari. See 8.2
SSP 7.3	Least Vireo	Vireo pusillus	Bell's Vireo	V. bellii	Klicka et al. 2016. Includes arizonae. NACC 2017-C-14 split vote declined
AS 7.3	Northern Shrike	Lanius borealis	Great Grey Shrike	L. excubitor	Northern Shrike is sister to Loggerhead Shrike L. ludovicianus; includes ssp sibiricus, bianchii, mollis, and funereus (Olsson et al. 2010, Johnsen et al. 2010, H&M4, NACC 2017-B-8)
AS 7.3	Natewa Silktail	Lamprolia klinesmithi	[Taveuni] Silktail	L. victoriae	Andersen et al. 2017
PS 7.3	Imeri Wren	Cyphorhinus transfluvialis	Musician Wren	C. arada	Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
PS 7.3	Ferruginous Wren	Cyphorhinus modulator	Musician Wren	C. arada	Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
PS 7.3	Grey-eared Wren	Cyphorhinus salvini	Musician Wren	C. arada	Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
PS 7.3	Rondonia Wren	Cyphorhinus interpositus	Musician Wren	C. arada	Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
PS 7.3	Grey-flanked Wren	Cyphorhinus griseolateralis	Musician Wren	C. arada	Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
SSP 7.3	'Mesoamerican' Creeper	Certhia albescens	Brown Creeper	C. americana	Manthey et al. (2011ab, 2015, 2016) NACC 2017-C-2 decline.
SSP 7.3	Grayson's Thrush	Turdus graysoni	Rufous-backed Robin	T. rufopalliatus	Stet subspecies status. Montaño-Rendon et al. (2015), NACC 2017-B-3 decline
AS 11.2	Taiwan Thrush	Turdus niveiceps	Island Thrush	T. poliocephalus	Usually treated as a subspecies of Turdus poliocephalus, but the sexually dimorphic niveiceps is not a member of the Island Thrush complex (Nylander et al. 2008; Fjeldså et al. 2020).
AS 7.3	Banasura Laughingthrush	Montecincla jerdoni	Nilgiri [Black-chinned] Laughingthrush	M. cachinnans	Praveen & Nameer 2012, Robin et al. 2017. Change genus from Trochalopteron to Montecincla. Restore previous English name Nilgiri Laughing Thrush.
AS 7.3	Ashambu Laughingthrush	Montecincla meridionale	Palani [Kerala] Laughingthrush	M. fairbanki	Praveen & Nameer 2012, Robin et al. 2017. Change genus from Trochalopteron to Montecincla
DEL 7.3	Ventania Yellow Finch	Sicalis holmbergi	Greater Yellow Finch	S. auriventris	López-Lanús 2017, SACC 748 (No)
PS 7.3	Calaveras Warbler	Oreothlypis ridgwayi	Nashville Warbler	O. ruficapilla	Stet subspecies status (Weir and Schluter 2004, Smith et al. 2005; NACC 2017-C-5
AS 7.3	Cassia Crossbill	Loxia sinesciuris	Red Crossbill	L. curvirostra	Benkman et al. 2009, Parchman et al. 2016, NACC 2017-A-4. ENG South Hills Crossbill
PL 7.3	Arctic/Hoary Redpoll	Acanthis hornemanni	Common Redpoll	A. flammea	Decline proposed lump of Arctic/Common Redpoll pending confirmation of nonassortative mating (Mason & Taylor 2015, NACC 2017-B-7 split vote.)
AS 7.3	Lesser Redpoll	Acanthis cabaret	Common Redpoll	A. flammea	Knox 2001, Ottvall et al. 2002, Marthinsen et al. 2008, Mason & Taylor 2015, BOU, H&M4, NACC 2017-B-7
AS 7.3	Baird's Junco	Junco bairdi	Yellow-eyed Junco	J. phaeonotus	Milá et al. 2016, NACC 2017-A-11
AS 7.2	Black-fronted Francolin	Pternistis atrifrons	Chestnut-naped Francolin	P. castaneicollis	Töpfer et al. 2014
AS 7.2	American Barn Owl	Tyto furcata	Western Barn Owl	T. alba	Nijman and Aliabadian 2013, König & Weick, 2009, Aliabadian et al. 2016.
AL 7.2	Archbold's Owlet-nightjar	Aegotheles archboldi	Mountain Owlet-nightjar	A. albertisi	Beehler & Pratt 2016
AS 7.2	Blue-vented Hummingbird	Amazilia hoffmanni	Steely-vented Hummingbird	A. saucerottei	Blue-vented Hummingbird is a distinct member of the Middle American A. cyanura species group, not saucerottei (Stiles & Skutch 1989, McGuire et al. 2014, Jiménez & Ornelas 2015). Note hoffmanni, not sophiae.
AS 7.2	Peruvian Racket-tail	Ocreatus peruanus	[White-]Booted Racket-tail	O. underwoodii	Schuchmann et al. 2016, SACC Apodiformes/62A
PS 7.2	Anna's Racket-tail	Ocreatus annae	[White-]Booted Racket-tail	O. underwoodii	Schuchmann et al. 2016; await more data
SSP 7.2	Choco Parakeet	Pyrrhura pacifica	Maroon-tailed Parakeet	P. melanura	Ridgely and Greenfield 2001, Donegan et al. 2016, SACC 524, HBW. Stet SSP/PS pending full revision.
AS 7.2	Rufous-booted Racket-tail	Ocreatus addae	[White-]Booted Racket-tail	O. underwoodii	Schuchmann et al. 2016; Includes annae as ssp. English name provisional
SSP 7.2	Upper Magdalena Parakeet	Pyrrhura chapmani	Maroon-tailed Parakeet	P. melanura	Fjeldsa & Krabbe 1990, Donegan et al. 2016. Stet SSP/PS pending full revision.
AS 7.2	Cordilleran Parakeet	Psittacara frontatus	Scarlet-fronted Parakeet	P. wagleri	Includes minor. Corey 1918, Sibley & Monroe 1990, Ridgely and Greenfield 2001, HBW 2014, SACC Psittaciformes/7, Donegan et al. 2016
SSP 7.2	Orinoco Amazon	Amazona bodini	Festive Amazon	A. festiva	Donegan et al. 2016; await supporting data. Stet SSP/PS pending full analysis
NEW 7.2	Tatama Tapaculo	Scytalopus alvarezlopezi			Stiles et al. 2017
AS 7.2	Cachar Bulbul	Iole cacharensis	Olive Bulbul	I. viridescens	Manawatthana et al. 2017; English name provisional
AS 7.2	Charlotte's Bulbul	Iole charlottae	Buff-vented Bulbul	I. crypta	Manawatthana et al. 2017; English name provisional. See also proposed taxonomic changes
AS 7.2	Whyte's Double-collared Sunbird	Cinnyris whytei	Ludwig's Double-collared Sunbird	C. ludovicensis	Bowie 2003, Bowie et al. 2015. Includes skye.
AS 7.1	Foveaux Shag	Leucocarbo stewarti	Otago [Stewart Island] Shag	L. chalconotus	Rawlence et al. 2016
PS 7.1	Samoan Wood Pigeon	Columba castaneiceps	Metallic Pigeon	C. vitiensis	Pratt & Mittermeier 2016. Stet as ssp pending full revision of species complex
AS 7.1	White-throated Wedgebill	Schistes albogularis	Geoffroy's Wedgebill [Wedge-billed Hummingbird]	S. geoffroyi	HBW Alive, Donegan et al. 2015. SACC 774 accepted. ENG?
AS 7.1	Merida Sunangel	Heliangelus spencei	Amethyst-throated Sunangel	H. amethysticollis	HBW Alive, Donegan et al. 2015; "Amethystine" Sunangel?
AS 7.1	Longuemare's Sunangel	Heliangelus clarisse	Amethyst-throated Sunangel	H. amethysticollis	HBW Alive, Donegan et al. 2015; "Amethystine" Sunangel?
PS 7.1	Perija Starfrontlet	Coeligena consita	Golden-bellied Starfrontlet	C. bonapartei	HBW Alive, Donegan et al. 2015; stet PS for now
PS 7.1	Golden Starfrontlet	Coeligena eos	Golden-bellied Starfrontlet	C. bonapartei	HBW Alive, Donegan et al. 2015; stet PS for now
PS 7.1	Green Inca	Coeligena conradii	Collared Inca	C. torquata	HBW Alive, Donegan et al. 2015; stet PS for now
PS 7.1	Peale's Kingfisher	Todiramphus pealei	Pacific Kingfisher	T. sacer	Pratt and Mittermeier 2016; includes manuae. Stet as ssp pending full revision of species complex
PL 7.1	Barbary Falcon	Falco pelegrinoides	Peregrine Falcon	F. peregrinus	White et al. 2013, H&M4, Fuchs et al. 2015, HBW Alive, Wink 2015. Stet PL until consensus
AS 7.1	Darwin's Flycatcher	Pyrocephalus nanus	Vermilion Flycatcher	P. [rubinus] obscurus	Carmi et al. 2016
AS 7.1	San Cristobal Flycatcher	Pyrocephalus dubius	Vermilion Flycatcher	P. [rubinus] obscurus	Carmi et al. 2016
AS 7.1	Scarlet Flycatcher	Pyrocephalus rubinus	Vermilion Flycatcher	P. [rubinus] obscurus	Carmi et al. 2016
AS 7.1	Double-collared Crescentchest	Melanopareia bitorquata	Collared Crescentchest	M. torquata	Lopes & Gonzaga 2016
PS 7.1	Samoan Myzomela	Myzomela nigriventis	Cardinal Myzomela	M. cardinalis	Pratt and Mittermeier 2016. Stet as ssp pending full revision of species complex
PS 7.1	Manua Shrikebill	Clytorhynchus powelli	Fiji Shrikebill	C. vitiensis	Pratt & Mittermeier 2016. Stet as ssp pending full revision of species complex
PS 7.1	Manua Starling	Aplonis manuae	Polynesian Starling	A. tabuensis	Pratt and Mittermeier 2016. Stet as ssp pending full revision of species complex
AS 7.1	Mediterranean Flycatcher	Muscicapa tyrrhenica	Spotted Flycatcher	M. striata	Vigano & Corso 2015, Pons et al. 2016; incl balearica
PS 7.1	Samoan Thrush	Turdus samoensis	Island Thrush	T. poliocephalus	Pratt & Mittermeier 2016
AS 7.1	Chinese Rubythroat	Calliope tschebaiewi	Himalayan [White-tailed] Rubythroat	C. pectoralis	Liu et al. 2016
AS 7.1	Genovesa Ground Finch	Geospiza acutirostris	Sharp-beaked Ground Finch	G. difficilis	Lamichhaney et al. 2015, SACC 676A-7/1; English name provisional
AS 7.1	Vampire Ground Finch	Geospiza septentrionalis	Sharp-beaked Ground Finch	G. difficilis	Lamichhaney et al. 2015, SACC 676A-7/1;English name provisional
AS 7.1	Genovesa Cactus Finch	Geospiza propinqua	'Espanola Cactus [Large Cactus] Finch	G. conirostris	Lamichhaney et al. 2015, SACC 676B-7/1; G. conirostris is sister to G. magnirostris.
AL 6.4	Violet-throated Toucanet	Aulacorhynchus cognatus	Blue-throated Toucanet	A. caeruleogularis	Winker 2016
AL 6.4	Santa Marta Toucanet	Aulacorhynchus lautus	White-throated Toucanet	A. albivitta	Winker 2016
AL 6.4	Grey-throated Toucanet	Aulacorhynchus griseigularis	White-throated Toucanet	A. albivitta	Winker 2016
AS 6.4	Chestnut-throated Flycatcher	Myiagra castaneigularis	Azure-crested Flycatcher	M. azureocapilla	Andersen et al. 2015, Clements 2016; includes whitneyi.
AS 6.4	Baliem Whistler	Pachycephala balim	Yellow-throated Whistler	P. macrorhyncha	Andersen et al. 2014, Beehler & Pratt 2016, Clements 2016
SSP 6.4	Hierro Blue Tit	Cyanistes ombriosus	African Blue Tit	Cyanistes teneriffae	Sangster 2006, Stervander et al. 2015, Illera et al. 2016; ssp of teneriffae
PS 6.4	Canary Islands Blue Tit	Cyanistes teneriffae	African Blue Tit	Cyanistes teneriffae	Sangster 2006, Stervander et al. 2015, Illera et al. 2016; includes hedwigae, ombriosus. ENG
SSP 6.4	Gran Canaria Blue Tit	Cyanistes hedwigae	African Blue Tit	Cyanistes teneriffae	Sangster 2006, Stervander et al. 2015, Illera et al. 2016; subspecies of teneriffae
PS 6.4	North African Blue Tit	Cyanistes ultramarinus	African Blue Tit	Cyanistes teneriffae	Sangster 2006, Stervander et al. 2015, Illera et al. 2016; includes degener; ENG?
SSP 6.4	Fuerteventura Blue Tit	Cyanistes degener	African Blue Tit	Cyanistes teneriffae	Sangster 2006, Stervander et al. 2015, Illera et al. 2016; subspecies of ultramarinus
PS 6.4	Cyrenaican Blue Tit	Cyanistes cyrenaicae	African Blue Tit	Cyanistes teneriffae	Sangster 2006, Stervander et al. 2015, Illera et al. 2016; monotypic
PS 6.4	La Palma Blue Tit	Cyanistes palmensis	African Blue Tit	Cyanistes teneriffae	Sangster 2006, Stervander et al. 2015, Illera et al. 2016; monotypic
AS 6.4	Mongolian Short-toed Lark	Calandrella dukhunensis	Greater Short-toed Lark	C. brachydactyla	Alström et al. 2013, Stervander 2016, Clements 2016.
AS 6.4	Streak-eared Bulbul	Pycnonotus conradi	Irrawaddy [Streak-eared] Bulbul	P. blanfordi	Garg et al. 2016
AS 6.3	Grey-faced Petrel	Pterodroma gouldi	Great-winged Petrel	P. macroptera	Wood et al. 2016
AS 6.3	Ainley's Storm Petrel	Oceanodroma cheimomnestes	Leach's Storm Petrel	O. leucorhoa	NACC 2016-C-16
AS 6.3	Townsend's Storm Petrel	Oceanodroma socorroensis	Leach's Storm Petrel	O. leucorhoa	NACC 2016-C-16
AL 6.3	Caribbean Coot	Fulica caribaea	American Coot	F. americana	Caribbean Coot is a white shield color morph/ subspecies of American Coot (HBW Alive, Donegan et al. 2015, NACC 2016-A-9)
PS 5.4	Tepui Nightjar	Systellura roraimae	Band-winged Nightjar	S. longirostris	Cleere 2010, SACC 677B DECLINED
PS 5.4	Rufous-naped Nightjar	Systellura ruficervix	Band-winged Nightjar	S. longirostris	Cleere 2010, SACC 677B DECLINED
AS 6.3	Cyprus Scops Owl	Otus cyprius	Eurasian Scops Owl	O. scops	Flint et al. 2015
AS 6.3	Lesser Violetear	Colibri cyanotus	Mexican [Green] Violetear	C. thalassinus	Remsen et al. 2015, NACC 2016-C-10
AS 6.3	Red-backed Flameback	Dinopium psarodes	Black-rumped Flameback	D. benghalense	HBW Alive, Fernando et al. 2016; Hybrid zone analysis indicates essential reproductive isolation.
SSP 6.3	Talaud Pitta	Erythropitta inspeculata	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013 Collar et al. 2015; H&M4 ssp group 1. Stet ssp of erythrogaster
SSP 6.3	Sulu Pitta	Erythropitta yairocho	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013. Stet ssp of erythrogaster
AS 6.3	Sula Pitta	Erythropitta dohertyi	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013, Collar et al. 2013; H&M4 ssp group 2.
AS 6.3	Siao Pitta	Erythropitta pallidiceps	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013, Collar et al. 2013; H&M4 ssp group 2.
AS 6.3	Sangihe Pitta	Erythropitta caeruleitorques	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013, Collar et al. 2013; H&M4 ssp group 2.
AS 6.3	Sulawesi Pitta	Erythropitta celebensis	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013, Collar et al. 2013; H&M4 ssp group 2.
AS 6.3	South Moluccan Pitta	Erythropitta rubrinucha	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013, Collar et al. 2015. Includes piroensis. H&M4 ssp group #4.
SSP 6.3	Seram Pitta	Erythropitta piroensis	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013. Ssp of South Moluccan Pitta
AS 6.3	Louisiade Pitta	Erythropitta meeki	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013, Collar et al. 2015. H&M4 ssp group #8
AS 6.3	North Mollucan Pitta	Erythropitta rufiventris	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013; Collar et al. 2015. Includes cyanonota, bernsteini, [obiensis, inornata]. H&M4 ssp group #3.
AS 6.3	Bismarck Pitta	Erythropitta novaehibernicae	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013; includes extima, splendida, gazellae. H&M4 ssp group #7.
SSP 6.3	New Britain Pitta	Erythropitta gazellae	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013. H&M4 ssp group #7. Ssp of Bismarck Pitta.
SSP 6.3	Tabar Pitta	Erythropitta splendida	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013. H&M4 subspecies group #7. Ssp of Bismarck Pitta.
AS 6.3	Papuan Pitta	Erythropitta macklotii	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013, Collar et al. 2015, Beehler & Pratt 2016). Includes habenichti, finschii, loriae/"oblita", digglesi,[aruensis, kuehni, strenua, yorki]. H&M4 ssp group #5-6
SSP 6.3	Habenicht's Pitta	Erythropitta habenichti	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013, Collar et al 2015. Ssp of Papuan Pitta. H&M4 ssp group #6;
SSP 6.3	D'Entrecasteaux Pitta	Erythropitta finschii	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013. Collar et al 2015. Ssp of Papuan Pitta. H&M4 ssp group #7,
SSP 6.3	Sao Paulo Antwren	Stymphalornis [Formicivora] paludicola	Parana [Marsh] Antwren	S. acutirostris	Buzzetti et al. 2013; SACC 693 3/5; subspecies for now
AS 6.3	Ayacucho Thistletail	Asthenes ayacuchensis	Vilcabamba Thistletail	A. vilcabambae	Hosner et al. 2015; SACC 697:7/0
AS 6.3	Aceh Bulbul	Pycnonotus snouckaerti	Orange-spotted Bulbul	P. bimaculatus	Eaton & Collar 2015
AS 6.3	Isthmian Wren	Cantorchilus elutus	Cabanis's [Plain] Wren	C. modestus	Saucier et al. 2015, NACC 2016-C-14
AS 6.3	Canebrake Wren	Cantorchilus zeledoni	Cabanis's [Plain] Wren	C. modestus	Stiles et al. 1989, Ridgely & Gwynne 1989, AOU 1998, Saucier et al. 2015, NACC 2016-C-14
AS 6.3	Santa Marta Wood Wren	Henicorhina anachoreta	Grey-breasted Wood Wren	H. leucophrys	Caro et al. 2013, SACC 700 7/0; English name provisional
NEW 6.3	Himalayan Thrush	Zoothera salimalii			Alström et al. 2016; ENG Forest Thrush (Turdus lherminieri)
AS 6.3	Sichuan Thrush	Zoothera griseiceps	Alpine [Plain-backed] Thrush	Z. mollissima	Alström et al. 2016; ENG Forest Thrush (Turdus lherminieri)
SSP 6.3	Grayson's Thrush	Turdus graysoni	Rufous-backed Thrush	T. rufopalliatus	Montaño-Rendón et al. 2015. Vocals? Stet subspecies status for now
SSP 6.3	Campina Thrush	Turdus arthuri	Black-billed Thrush	T. ignobilis	Cerqueira et al. 2016; stet PS SSP pending resolution of (unsampled) ssp ignobilis and goodfellowi.SACC?
SSP 6.3	Amazonian Thrush	Turdus debilis	Black-billed Thrush	T. ignobilis	Cerqueira et al. 2016; stet PS SSP as above. SACC?
SSP 6.3	Lilian's Meadowlark	Sturnella lilianae	Eastern Meadowlark	S. magna	Includes auropectoralis and saundersi; NACC 2016-C-2 declined.
AS 6.3	Gran Canaria Blue Chaffinch	Fringilla polatzeki	[Tenerife] Blue Chaffinch	F. teydea	Sangster et al. 2015
AS 6.2	Sultan's Cuckoo-Dove	Macropygia doreya	Amboyna [Slender-billed] Cuckoo-Dove	M. amboienensis	Ng et al. 2016. Incl albicapilla, albiceps, atrata, sanghirensis, sedecima, balim. English name provisional
AS 6.2	Enggano Cuckoo-Dove	Macropygia cinnamomea	Ruddy Cuckoo-Dove	M. emiliana	Ng et al. 2016. Monotypic
AS 6.2	Barusan Cuckoo-Dove	Macropygia modiglianii	Ruddy Cuckoo-Dove	M. emiliana	Ng et al. 2016. Incl elassa, hypopercna
AS 6.2	Tanimbar Cuckoo-Dove	Macropygia timorlaoensis	Timor [Bar-necked] Cuckoo-Dove	M. magna	Ng et al. 2016. Monotypic
AS 6.2	Flores Sea Cuckoo-Dove	Macropygia macassariensis	Timor [Bar-necked] Cuckoo-Dove	M. magna	Ng et al. 2016. Incl longa
AS 6.2	Sula Cuckoo-Dove	Turacoena sulaensis	White-faced [Cuckoo-] Dove	T. manadensis	Ng & Rheindt 2016
AS 6.2	Purple-capped Fruit Dove	Ptilinopus ponapensis	Crimson-crowned Fruit Dove	P. porphyraceus	Cibois et al. 2014, Hayes et al. 2016
AS 6.2	Kosrae Fruit Dove	Ptilinopus hernsheimi	Crimson-crowned Fruit Dove	P. porphyraceus	Hayes et al. 2016
AS 6.2	Turquoise-throated Barbet	Psilopogon chersonesus	Blue-throated Barbet	P. asiaticus	Sister to P. oorti, den Tex and Leonard 2013, Clements 6.9, HBW Alive
AS 6.2	Necklaced Barbet	Psilopogon auricularis	Golden-throated Barbet	P. franklinii	den Tex and Leonard 2013, HBW Alive
AS 6.2	Coopmans's Elaenia	Elaenia brachyptera	Lesser Elaenia	E. chiriquensis	Rheindt et al 2015; SACC 686
AS 6.2	Tan-capped Catbird	Ailuroedus geislerorum	White-eared Catbird	A. buccoides	Irestedt et al. 2015; includes molestus. English names?
AS 6.2	Ochre-breasted Catbird	Ailuroedus stonii	White-eared Catbird	A. buccoides	Irestedt et al. 2015; includes cinnamomeus. English names?
AS 6.2	Spotted Catbird	Ailuroedus maculosus	Black-eared [Spotted] Catbird	A. melanotis	Irestedt et al. 2015
AS 6.2	Black-capped Catbird	Ailuroedus melanocephalus	Black-eared [Spotted] Catbird	A. melanotis	Irestedt et al. 2015
AS 6.2	Huon Catbird	Ailuroedus astigmaticus	Black-eared [Spotted] Catbird	A. melanotis	Irestedt et al. 2015
AS 6.2	Arfak Catbird	Ailuroedus arfakianus	Black-eared [Spotted] Catbird	A. melanotis	Irestedt et al. 2015; includes misoliensis.
AS 6.2	Northern Catbird	Ailuroedus jobiensis	Black-eared [Spotted] Catbird	A. melanotis	Irestedt et al. 2015; includes guttaticollis.
AS 6.2	Temotu Whistler	Pachycephala vanikorensis	Fiji Whistler	P. vitiensis	Includes ornata and utupae, as well as vanikorensis [from Melanesian Whistler Pachycephala chlorura](Andersen et al. 2014, Jønsson et al. 2014). Temotu is the local name of the [Santa Cruz] islands and the current and official name of that province in the Solomon Islands
AS 6.2	Grey-brown White-eye	Zosterops ponapensis	Kosrae [Grey-brown] White-eye	Z. cinereus	Hayes et al. 2016; English name Grey-brown White-eye appropriate to and established for ponapensis. Rename Z. cinereus 'Kosrae White-eye' (D. Pratt)
AS 6.2	Dark-eyed White-eye	Zosterops tetiparius	Solomons White-eye	Z. kulambangrae	Includes paradoxus (Moyle et al. 2009, H&M4, but also see H&M4: 644, Mees 1955 re use of rendovae)
AS 6.2	Forest White-eye	Zosterops stenocricotus	African Yellow White-eye	Z. senegalensis	Vocally distinct sister to (Speirops) brunneus on Bioko Is; not a member of the senegalensis cryptic species complex (Fry et al. 2000, Cox 2013, Cox et al. 2014). English name ok?
SSP 6.2	Taiwan Thrush	Turdus niveiceps	Island Thrush	T. poliocephalus	Nylander et al. 2008, H&M4; stet ssp status for now
SSP 6.2	Yunnan Parrotbill	Sinosuthora ricketti	Brown-winged Parrotbill	S. brunnea	Deignan 1964, Robson 2007, Penhallurick & Robson 2009, Yeung et al. 2011. STET subspecies pending further research
SSP+ 6.2	Grass Wren	Cistothorus elegans	Grass Wren	C. platensis	Robbins and Nyári 2014. Includes tinnulus, potosinus, jalapensis, warneri, russelli, graberi, and lucidus.
SSP+ 6.2	Austral Wren	Cistothorus hornensis	Grass Wren	C. platensis	Robbins and Nyári 2014. Includes falklandicus
SSP+ 6.2	Tucuman Wren	Cistothorus tucumanus	Grass Wren	C. platensis	Robbins and Nyári 2014. Includes boliviae
SSP+ 6.2	Puna Wren	Cistothorus minimus	Grass Wren	C. platensis	Robbins and Nyári 2014.
SSP+ 6.2	Junin Wren	Cistothorus graminicola	Grass Wren	C. platensis	Robbins and Nyári 2014.
SSP+ 6.2	Paramo Wren	Cistothorus aequatorialis	Grass Wren	C. platensis	Robbins and Nyári 2014. Includes tamae, tolimae
SSP+ 6.2	Venezuelan Wren	Cistothorus alticola	Grass Wren	C. platensis	Robbins and Nyári 2014.
NEW 6.2	Ibera Seedeater	Sporophila iberaensis			Di Giacomo & Kopuchian 2016; SACC proposal badly needed. Appropriate scientific name remains unsettled (SACC Thraupidae Footnote 116).
AS 6.1	Tschudi's Nightjar	Systellura decussata	Band-winged Nightjar	S. longirostris	Cleere 2010, SACC 677A 10/0; English name=Desert Nightjar? Genus?
NEW 6.1	Western Striolated Puffbird	Nystalus obamai	Eastern Striolated Puffbird	N. striolatus	Whitney et al. 2013e, SACC 617, 679, 701.
SSP 6.1	Pacific Fulmar	Fulmarus rodgersii	Northern Fulmar	F. glacialis	Stet subspecies; see Kerr & Dove 2013 for PS status of F. rodgersii
SSP 6.1	Northern Silvery Grebe	Podiceps juninensis	[Southern] Silvery Grebe	P. occipitalis	Stet subspecies pending better contact zone info (Fjeldså & Krabbe 1990, Jaramillo 2003, Del Hoyo & Collar 2014, Ogawa et al. 2015).
SSP 6.1	Eastern Striolated Puffbird	Nystalus torridus	[Natterer's] Striolated Puffbird	N. striolatus	SACC 617 declined; stet as subspecies of N. striolatus pending completion of SACC 679 discussion
SSP 6.1	Mallee Whipbird	Psophodes leucogaster	Western Whipbird	P. nigrogularis	Schodde & Mason 1999, Christidis & Boles 2008, Toon et al. 2013; await full study
SSP 6.1	Western Subalpine Warbler	Sylvia inornata	[Eastern] Subalpine Warbler	P. cantillans	Svensson 2013ab; includes new ssp iberiae. Await revision of species complex.
SSP 6.1	Santa Marta Wood Wren	Henicorhina anachoreta	Grey-breasted Wood Wren	H. leucophrys	Stet subspecies status pending review of species complex. See Caro et al. 2013)
AS 6.1	Sedge Wren	Cistothorus stellaris	Grass [Sedge] Wren	C. platensis	Robbins and Nyári 2014; Middle and South American members of this species complex await revision.
SSP 6.1	'Okinawa Flycatcher'	Ficedula owstoni	Narcissus Flycatcher	F. narcissina	Dong et al. 2015. English name under discussion. Await data on additional populations
AS 6.1	Bundok Flycatcher	Fidecula luzoniensis	Snowy-browed Flycatcher	F. hyperythra	Philippine populations of Snowy-browed Flycatcher are members of a different species clade (Moyle et al. 2015, Clements et al. 2015).
SSP 6.1	Visayan Shama	Copsychus superciliarus	White-browed Shama	C. luzoniensis	Lim et al. 2010, Collar 2011b, not H&M4 nor HBW. Stet ssp
AS 6.1	Merida Brush Finch	Atlapetes meridae	Moustached Brush Finch	A. albofrenatus	Donegan et al. 2014
SSP 6.1	Cayman Bullfinch	Melopyrrha taylori	Cuban Bullfinch	M. nigra	Bradley 2000, H&M4, Garrido et al. 2014; NACC 2016-A-5.

Posted	English Name	Scientific Name	Parent	Parent (sci)	Proposal
PS 12.2	Red Grouse	Lagopus scotica	Willow Ptarmigan	Lagopus lagopus	Red Grouse is a proposed split from Willow Ptarmigan based on molecular evidence and differences in plumage (Sangster et al. 2022).
PS 12.2	Tagula Manucode	Manucodia alter	Glossy-mantled Manucode	Manucodia ater	Tagula Manucode is a proposed split from Glossy-mantled Manucode based on significant vocal differences and some differences in morphology (Gregory 2017).


AS 12.1	Elgon Francolin	Scleroptila elgonensis	Moorland Francolin	Scleroptila psilolaema	Elgon Francolin is split from Moorland Francolin based on differences in vocalizations and plumage (Hunter et al. 2019; HBW/Birdlife, N. Redman in litt.)).
PS 12.1	Savanna Nightjar	Caprimulgus monticolus	Allied Nightjar	Caprimulgus affinis	Caprimulgus monticolus (including amoyensis and stictomus) is a proposed split from C. affinis which would assume the English name "Allied Nightjar". English names under discussion and differ from those those suggested in the publication. (Sangster et al. 2021).
PS 12.1	Kayumanggi Nightjar	Caprimulgus griseatus	Allied Nightjar	Caprimulgus affinis	C. griseatus (including mindanensis) is a proposed split from C. affinis. English name under discussion (Sangster et al. 2021).
PS 12.1	Eastern Rockhopper Penguin	Eudyptes filholi	Southern Rockhopper Penguin	Eudyptes chrysocome	Eastern Rockhopper Penguin Eudyptes filholi is a proposed split from E. chrysocome based on an integrative taxonomy including genetic and morphological differences and strict allopatry (Frugone et al. 2021).
PS 12.1	Kermadec Storm Petrel	Pelagodroma albiclunis	White-faced Storm Petrel	Pelagodroma marina	Kermadec Storm Petrel Pelagodroma albiclunis is a proposed split from White-faced Storm Petrel based on consistent striking differences in plumage and tail morphology (Gill et al. 2010).
AS 7.1	Yellow-billed Egret	Ardea brachyrhyncha	Intermediate Egret	A. intermedia	African Ardea brachyrhyncha is a proposed split from Asian A. intermedia on the basis of striking differences in breeding cycle soft part coloration (Cake et al. 2016; HBW/Birdlife).
AS 7.1	Plumed Egret	Ardea plumifera	Intermediate Egret	A. intermedia	Australasian Ardea plumifera is a proposed split from Asian A. intermedia on the basis of striking differences in breeding cycle soft part coloration, morphometrics and calls (HBW/Birdlife; Rasmussen & Anderton 2012).
PS 12.1	Walden's Scops Owl	Otus modestus	Oriental Scops Owl	Otus sunia	Otus modestus is a proposed split from O. sunia on the basis of unique vocalizations (Rasmussen & Anderton 2012).
AS 12.1	Wetar Scops Owl	Otus tempestatis	Moluccan Scops Owl	Otus magicus	Wetar Scops Owl Otus tempestatis is split from Otus magicus based on distinct vocalizations (Eaton et al. 2021; HBW/Birdlife).
PS 12.1	Brown Wood Owl	Strix indranee	Sunda Wood Owl	Strix leptogrammica	Asian mainland Brown Wood Owl Strix indranee (seven subspecies) is a proposed split from Sunda Wood Owl S. leptogrammica based on vocalizations and plumage (Eaton et al. 2021). Note that the English name Brown Wood Owl follows the split species.
AS 12.1	Brown-breasted Kingfisher	Halcyon gularis	White-throated Kingfisher	Halcyon smyrnensis	Brown-breasted Kingfisher H. gularis is split from H. smyrnensis based on plumage and vocalizations (Collar 2011b; Allen 2020; HBW/Birdlife).
AS 12.1	Rufous-crowned Bee-eater	Merops americanus	Blue-throated Bee-eater	Merops viridis	Rufous-crowned Bee-eater Merops americanus is split from M. viridis based on morphologic differences (Collar 2011b; Allen 2020; HBW/Birdlife).
AS 12.1	Malabar Flameback	Chrysocolaptes socialis	Greater Flameback	Chrysocolaptes guttacristatus	Chrysocolaptes socialis is split from C. guttacristatus based on differences in plumage and vocalizations (Rasmussen & Anderton 2012; Abhirami et al. 2021).
AS 12.1	Blue-backed Parrot	Tanygnathus everetti	Azure-rumped Parrot	Tanygnathus sumatranus	Tanygnathus everetti (including duponti, freeri and burbidgii) is a proposed split from T. sumatranus based on plumage, eye color and genetic divergence (Arndt et al. 2019; Eaton et al. 2021). Note that the English name Blue-backed Parrot follows the split species.
AS 12.1	Huon Bowerbird	Amblyornis germanus	MacGregor's Bowerbird	Amblyornis macgregoriae	Huon Bowerbird Amblyornis germanus is a proposed split from A. macgregoriae based on distinctive bower construction and unpublished molecular differences (Beehler & Pratt 2016; Gregory 2017).
AS 12.1	Bacan Myzomela	Myzomela batjanensis	Sulawesi Myzomela	Myzomela chloroptera	Bacan Myzomela M. batjanensis is split from Sulawesi Myzomela M. chloroptera based on substantial differences in plumage and voice (Eaton et al. 2021, HBW/Birdlife).
AL 12.1	Indonesian Honeyeater	Lichmera limbata	Brown Honeyeater	Lichmera indistincta	Lichmera limbata is re-lumped with Brown Honeyeater L. indistincta based on indistinct plumage, vocalizations and genetics (Mees 2006; Dickinson & Christidis 2014; Eaton et al. 2021).
PS 12.1	Roving Cuckooshrike	Coracina sumatrensis	Bar-bellied Cuckooshrike	Coracina striata	Sundaic Coracina sumatrensis is a proposed split from endemic Philippine C. striata based on morphological differences and limited mtDNA data (Eaton et al. 2021).
PS 12.1	Visayan Cuckooshrike	Coracina panayensis	Bar-bellied Cuckooshrike	Coracina striata	Monotypic Coracina panayensis is a proposed split from C. striata based on morphological and bioacoustic differeces (Allen 2020;HBW/Birdlife).
AS 12.1	Louisiade Monarch	Symposiachrus melanopterus	Spectacled Monarch	Symposiachrus trivirgatus	Monotypic Louisiade Monarch Symposiachrus melanopterus is a proposed split from S. trivirgatus based on morphological differences and phylogenetic analysis (McCullough et al. 2021).
PS 12.1	Tagula Manucode	Manucodia alter	Glossy-mantled Manucode	Manucodia ater	Tagula Manucode M. alter is a proposed split from M. ater based on reportedly very different vocalizations and some morphological differences (Gregory 2017).
AS 12.1	Flores Leaf Warbler	Phylloscopus floresianus	Timor Leaf Warbler	Phylloscopus presbytes	Phylloscopus floresianus is split from P. presbytes on the basis of plumage and vocal differences. (Eaton et al. 2021)
AS 12.1	Guadalcanal Thicketbird	Cincloramphus turipavae	Melanesian (Santo) Thicketbird	Cincloramphus whitneyi	Split based on morphological differences and allopatry (Dutson 2011, HBW/Birdlife).
PS 12.1	Palawan Tit-Babbler	Mixornis woodi	Pin-striped Tit-Babbler	Mixornis gularis	Proposed split based on striking allopatry, plumage, and reported differences in calls (Collar & Robson 2020; Allen 2020).
PS 12.1	Brown-crowned (Phayre's) Scimitar Babbler	Pomatorhinus phayrei	Black-crowned (Coral-billed) Scimitar Babbler	Pomatorhinus ferruginosus	Pomatorhinus phayrei (including stanfordi, albogularis, orientalis and dickinsoni) is a proposed split from monotypic P. ferruginosus based on differences in plumage and vocalizations. English names under discussion (Rasmussen & Anderton 2012; HBW/Birdlife).
PS 12.1	Indochinese Babbler	Malacopteron indochinense	Scaly-crowned Babbler	Malacopteron cinereum	Malacopteron indochinense (Indochinese Babbler) is a proposed split from M. cinereum based on differences in plumage, vocalizations, and mtDNA (Eaton et al. 2021).
PS 12.1	Glissando Babbler, Leaflitter Babbler	Pellorneum saturatum, Pellorneum poliogene	Mourning (Short-tailed) Babbler	Pellorneum malaccense	Pellorneum saturatum and Pellorneum poliogene are proposed splits from P. malaccense based on pronounced vocal and genome-wide differences (Eaton et al. 2021). English names tentative.
PS 12.1	Bornean Swamp Babbler	Pellorneum macropterum	Malayan Swamp (White-chested) Babbler	Pellorneum rostratum	Proposed split based on vocal and genetic differences (Eaton et al. 2021). English names tentative.
PS 12.1	Modest Flowerpecker	Dicaeum modestum	Thick-billed Flowerpecker	Dicaeum agile	Modest Flowerpecker (including subspecies pallescens, atjehense and finschi) is a proposed split from Thick-billed Flowerpecker on the basis of vocalizations and morphology (Rasmussen & Anderton 2012; Eaton et al. 2021).
PS 12.1	Tenggara Flowerpecker	Dicaeum obsoletum	Thick-billed Flowerpecker	Dicaeum agile	Tenggara Flowerpecker (including subspecies tinctum) a proposed split from Thick-billed Flowerpecker (and is also distinguished from proposed Modest Flowerpecker) on the basis of vocalizations and morphology (Eaton et al. 2021).
PS 12.1	Orange-lined Sunbird	Leptocoma juliae	Purple-throated Sunbird	Leptocoma sperata	Proposed split based on differences in plumage (Allen 2020, HBW/Birdlife).
AS 12.1	Ruvu Weaver	Ploceus holoxanthus	Eastern Golden Weaver	Ploceus subaureus	Resurrect P. holoxanthus as a unique species after having been mistakenly synonymized with P. subaureus for years. But critical analysis shows consistent morphological differences and it is quite genetically distinct (Turner & Kennedy 2019; Fjeldså et al. 2020; Oschadleus et al. 2021).
AS 12.1	Australian Zebra Finch	Taeniopygia castanotis	(Sunda) Zebra Finch	Taeniopygia guttata	Australian Zebra Finch T. castanotis is split from (Sunda) Zebra Finch T. guttata based on differences in plumage, moderate mtDNA divergence. and evidence of assortive mating in captivity (Clayton 1990; Payne 2010; Olsson & Alström 2020; Eaton et al. 2021; HBW/Birdlife).
AL 12.1	Arabian Accentor	Prunella fagani	Radde's Accentor	Prunella ocularis	Arabian Accentor P. fagani is lumped with Radde's Accentor P. ocularis based on only minor differences in plumage, identical vocalizations, and insufficient genetic evidence to support a split. Treat as a non-migratory subspecies (Shirihai & Svensson 2018; Kirwan et al. 2021).
PS 12.1	African Chaffinch, Azores Chaffinch, Madeira Chaffinch, Canary Islands Chaffinch	Fringilla spodiogenys, F. moreletti, F. maderensis, F. canariensis	Eurasian (Common) Chaffinch	Fringilla coelebs	Fringilla spodiogenys (including africana and harterti), F. moreletti, F. maderensis and F. canariensis (including bakeri, ombriosa and palmae) are proposed splits from F. coelebs based on differences in plumage and genetics (Recuerda et al. 2021).
AS 12.1	Chinese Long-tailed Rosefinch	Carpodacus lepidus	(Siberian) Long-tailed Rosefinch	Carpodacus sibiricus	Carpodacus lepidus (including henrici) is split from C. sibricus (including sanguinolentus and ussuriensis) based on genetic and plumage differences (Liu et al. 2020).
AS 12.1	Masked Bunting	Emberiza personata	Black-faced Bunting	Emberiza spodocephala	Monotypic E. personata is split from E. spodocephala based on morphological and genetic differences (Weissensteiner et al. 2014; Päckert et al. 2015; Brazil 2018; HBW/Birdlife).
New 12.1	Inti Tanager	Heliothraupis oneilli			Newly described genus and species within Thraupidae within the same clade as Black-goggled and Grey-headed Tanagers: Lane et al. 2021.
AS 11.2	Sangihe Lilac Kingfisher	Cittura sanghirensis	Sulawesi Lilac Kingfisher	Cittura cyanotis	Accepted split on the basis of genetic traits, plumage, structural and bioacoustic differences (Eaton et al. 2016, 2021; HBW/Birdlife).
PS 11.2	Mindanao Dwarf Kingfisher	Ceyx mindanensis	Luzon Dwarf Kingfisher	Ceyx melanurus	Proposed split of Ceyx mindanensis from C. melanurus (including samarensis) on the basis of significant differences in plumage, some structural differences and phylogenetic analysis (Anderson et al. 2013; Allen 2020; HBW/BirdLife).
PS 11.2	Red-necked Falcon	Falco ruficollis	Red-headed Falcon	Falco chicquera	Red-necked Falcon F. ruficollis (including horsbrughi) is a proposed split from Asian Falco chicquera, renamed Red-headed Falcon, based on differences in plumage, preferred breeding habitat, and genetic differences (HBW/Birdlife).
AS 11.2	Fulvous-faced Scrub Tyrant	Euscarthmus fulviceps	Fulvous-crowned Scrub Tyrant	Euscarthmus meloryphus	Proposed split based on morphological and vocal differences (Franz et al. 2020; SACC 898). English names established in SACC 916.
PS 11.2	Guadalcanal Fantail	Rhipidura ocularis	Brown (Bougainville) Fantail	Ripidura drownei	Proposed split based on plumage and vocal differences (Dutson 2011; Gregory 2017; HBW/Birdlife).
PS 11.2	Vanuatu Streaked Fantail, Fiji Streaked Fantail	Rhipidura spilodera, Rhipidura layardi	(New Caledonia) Streaked Fantail	Rhipidura verreauxi	Vanuatu Streaked Fantail Rhipidura spilodera and Fiji Streaked Fantail Rhipidura layardi (including erythronota and rufilateralis) are proposed splits from New Caledonia Streaked Fantail R. verreauxi based on plumage and vocal differences (HBW/BirdLife).
PS 11.2	Angola (Green-crowned) Greenbul	Phyllastrephus viridiceps	White-throated Greenbul	Phyllastrephus albigularis	Proposed split based on plumage and reported bioacoustic differences (HBW/Birdlife). English name under discussion.
PS 11.2	Sulu Bulbul	Hypsipetes haynaldi	Yellowish Bulbul	Hypsipetes everetti	Proposed split based on vocal and plumage differences (Allen 2020; HBW/Birdlife).
PS 11.2	Malagasy Plain Martin	Riparia cowani	Brown-throated Martin	Riparia paludicola	Proposed split based on morphometrics, some plumage differences and reported differences in calls (HBW/Birdlife). English name under discussion.
PS 11.2	Snares Fernbird	Poodytes caudatus	New Zealand Fernbird	Poodytes punctatus	Proposed split based on plumage and morphometrics (HBW/Birdlife).
PS 11.2	Huambo Cisticola	Cisticola bailunduensis	Rock-loving Cisticola	Cisticola emini	Proposed split based on morphology, strong bioacoustic differences and different habitat (HBW/Birdlife).
PS 11.2	Sulu Tit-Babbler	Macronus kettlewelli	Brown Tit-Babbler	Macronus striaticeps	Proposed split from based on major plumage and iris color differences (Allen 2020).
PS 11.2	Horsfield's Thrush	Zoothera horsfieldi	Scaly Thrush	Zoothera dauma	Proposed split based on vocal, plumage and morphometric traits (Eaton et al. 2016). Apparently closer phylogenetically to Z. aurea than to Z. dauma (Fjeldså et al. 2020).
PS 11.2	Western (White-winged) Magpie-Robin	Copsychus pica	Madagascan Magpie-Robin	Copsychus albospecularis	Proposed split based on morphometrics, bioacoustics, differences in plumage and display, and parapatric distribution (HBW/Birdlfe). English name under discussion.
AS 11.2	Visayan Shama	Copsychus superciliaris	White-browed Shama	Copsychus luzoniensis	Accepted split based on genetic and plumage differences (Lim et al. 2010; Collar 2011b; Sánchez-González et al. 2015, HBW/BLI, Allen 2020).
PS 11.2	Volcano Sunbird	Cinnyris preussi	Rift (Northern Double-collared) Sunbird	Cinnyris reichenowi	Proposed split based on genetic, morphological, and ecological divergence (Cooper et al. 2021).
AS 11.2	Arabian Sunbird	Cinnyris hellmayri	Shining Sunbird	Cinnyri habessinicus	Arabian Sunbird Cinnyris hellmayri (including kinneari) is split from Shining Sunbird C. habessinicus on the basis of distinctive male and female plumages, larger size, and reportedly different vocalizations (Shirihai & Svensson 2018; HBW/Birdlife).
PS 11.2	Black-breasted Sunbird	Cinnyris idenburgi	Olive-backed Sunbird	Cinnyris jugularis	Proposed split based on plumage and morphometric differences (Gregory 2017; HBW/Birdlife).
PS 11.2	Grand Comoro Sunbird, Moheli Sunbird	Cinnyris moebii, Cinnyris voeltzkowi	Madagascar (Malagasy) Sunbird	Cinnyris notatus	Proposed splits on the basis of differences in morphology and genetic divergence (Warren et al. 2003; HBW/Birdlife).
PS 11.2	Upemba Masked Weaver	Ploceus upembae	Katanga Masked Weaver	Ploceus katangae	Proposed split based on differences in plumage and preliminary genetic data (Craig et al. 2011; HBW/Birdlife).
PS 11.2	Chestnut-and-black Weaver	Ploceus castaneofuscus	Vieillot's Black Weaver	Ploceus nigerrimus	Proposed split based on marked differences in plumage and reported differences in breeding behavior (Crook 1963; HBW/Birdlife).
PS 11.2	Grand Comoro Fody	Foudia consobrina	Red-headed (Comoros) Fody	Foudia eminentissima	Foudia consobrina is a proposed split from F. eminentissima based on differences in plumage, evidently some vocal differences, and sister relationship with other Comoros taxa (Warren et al. 2011; Safford & Hawkins 2013; HBW/Birdlife; de Silva et al. 2019).
PS 11.2	Malayan Bullfinch	Pyrrhula waterstradti	Brown Bullfinch	Pyrrhula nipalensis	Proposed split based on differences in plumage and call (Puan et al. 2020; HBW/Birdlife)
Done

PS 11.2	Parana Chachalaca	Ortalis remota	Speckled Chachalaca	Ortalis guttata	Recently proposed as a distinct species (Silveira et al. 2017; SACC 902). Did not pass SACC.
AS 11.2	Kai Coucal	Centropus spilopterus	Pheasant Coucal	Centropus phasianinus	Kai Coucal Centropus spilopterus is relisted as a proposed split from Pheasant Coucal C. phasianinus based on its distinctive plumage and allopatric distribution (Eaton et al. 2021; HBW/Birdlife)
NEW 10.1 Reposted	Whistling Long-tailed Cuckoo	Cercococcyx lemaireae	Dusky Long-tailed Cuckoo	C. mechowi	Morphologically 'identical' western populations proposed (10.1) to be recognized as a new species Cercococcyx lemaireae based on song and call differences from C. mechowi (first noted by Dowsett-Lemaire 1997) (Boesman & Collar 2019). Apparent narrow hybrid zone in Bakossi Mountains, Cameroon.
AS 11.2	Philippine Collared Dove	Streptopelia dusumieri	Sunda (Island) Collared Dove	Streptopelia bitorquata	Accepted split based on vocal and plumage differences (Collar 2011b; Eaton et al. 2016; Allen 2020; HBW/Birdlife).
AS 11.2	Burmese Collared Dove	Streptopelia xanthocycla	Eurasian Collared Dove	Streptopelia decaocto	Accepted split based on plumage, unique eye-ring color, song, and geographical isolation (HBW/Birdlife).
PS 11.2	Western Spotted Dove	Spilopelia suratensis	Eastern Spotted Dove	Spilopelia chinensis	Western Spotted Dove (including ssp ceylonensis) is a proposed split based on differences in plumage, soft-part colors and vocalizations (Rasmussen & Anderton 2012; HBW/Birdlife).
AS 11.2	Raiatea Fruit Dove	Ptilinopus chrysogaster	Grey-green Fruit Dove	Ptilinopus purpuratus	Accepted split based on plumage differences and molecular data (Cibois et al. 2014; Thibault & Cibois 2017; HBW/Birdlife).
AS 11.2	Geelvink Fruit-dove	Ptilinopus speciosus	Yellow-bibbed Fruit Dove	Ptilinopus solomonensis	Accepted split based on plumage and vocal differences (Gregory 2017; HBW/Birdlife).
AS 11.2	Malabar Imperial Pigeon	Ducula cuprea	Mountain Imperial Pigeon	Ducula badia	Accepted split based on differences in morphology and voice (HBW/Birdlife; Niranjana & Praveen 2021).
AS 11.2	Geelvink Imperial Pigeon	Ducula geelvinkiana	Spice Imperial Pigeon	Ducula myristicivora	Accepted split based on vocal, morphological and plumage differences (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
AS 11.2	Ryukyu Green Pigeon	Treron permagnus	Taiwan Green Pigeon	Treron formosae	Accepted split of Ryukyu Green Pigeon (including ssp medioximus) from Taiwan (Whistling) Green Pigeon (including ssp filipinus) based on morphological and vocal differences (Brazil 2009; HBW/Birdlife).
PS 11.2	Eastern Bronze Ground Dove	Pampusana johannae	(Western) Bronze Ground Dove	Pampusana beccarii	Proposed split based on differences in vocalizations, plumage, elevation. and habitat (Gregory 2017; HBW/Birdlife).
AS 11.2	New Caledonian Buttonquail	Turnix novaecaledoniae	Painted Buttonquail	Turnix varius	Accepted split following HBW/Birdlife.
PS 11.2	African Woolly-necked Stork	Ciconia microscelis	Asian Woolly-necked Stork	Ciconia episcopus	Proposed split of Ciconia microscelis from C. episcopus (including neglecta) based on pronounced plumage differences (Eaton et al. 2021; HBW/Birdlife).
AS 11.2	Banggai Scops Owl	Otus mendeni	Sulawesi Scops Owl	Otus manadensis	Accepted split based on vocalizations (Eaton et al. 2016, 2021; HBW/Birdlife).
AS 11,2	Guadalcanal Owl, Malaita Owl, Makira Owl	Athene granti, Athene malaitae, Athene roseoaxillaris	West Solomons Owl	Athene jacquinoti	Accepted splits based on plumage and bioacoustic differences (Dutson 2011; HBW/Birdlife).
AS 11.2	Ethiopian Bee-eater	Merops lafresnayii	Blue-breasted Bee-eater	Merops variegatus	Merops lafresnayii is an accepted split from M. variegatus based on morphological and vocal differences. Differs from the similarly sized M. oreobates by its different plumage and voice (Redman et al. 2016; Fry et al. 2020; HBW/Birdlife).
AS 11.2	African Green Bee-eater, Arabian Green Bee-eater	Merops viridissimus, Merops cyanophrys	Asian Green Bee-eater	Merops orientalis	Merops viridissimus (including ssp flavoviridis and cleopatra) and Merops cyanophrys (including ssp muscatensis) are accepted splits from Merops orientalis based on significant differences in morphology and voice (Fry et al. 2020; HBW/Birdlife).
AS 11.2	Sumatran Woodpecker	Picus dedemi	Grey-headed Woodpecker	Picus canus	Accepted split based on significant differences in plumage and voice (Eaton et al. 2021; HBW/Birdlife).
AS 11.2	Southern Sooty Woodpecker	Mulleripicus fuliginosus	Northern Sooty Woodpecker	Mulleripicus funebris	Accepted split from M. funebris (including mayri and parkesi) on the basis of structural and plumage differences and possible vocal differences (Collar 2011b; Allen 2020; HBW/Birdlife, Clements).
NEW 10.1 Reposted	Western Yellow-spotted Barbet	Buccanodon dowsetti	(Eastern) Yellow-spotted Barbet	B. duchaillui	Morphologically 'identical' western populations proposed (10.1) to be recognized as Buccanodon dowsetti sp. nov. based on very different vocals (first noted by Borrow & Demey 2001) (Boesman & Collar 2019). Replaces B. duchaillui west of Dahomey Gap.
AS 11.2	Usambiro Barbet	Trachyphonus usambiro	D'Arnaud's Barbet	Trachyphonus darnaudii	Accepted split based on plumage and vocal differences (Sibley & Monroe 1990; Stevenson & Fanshaw 2002; HBW/Birdlife).
AS 11.2	Comoros Black Parrot	Coracopsis sibilans	Lesser Vasa Parrot	Coracopsis nigra	Accepted split based on genetic divergence and significant vocal and size difference (Kundu et al. 2012; HBW/Birdlife).
AS 11.2	Simeulue Parrot	Psittinus abbotti	Blue-rumped Parrot	Psittinus cyanurus	Accepted split based on substantial structural and plumage differences (Eaton et al. 2016; HBW/Birdlife).
PS 11.2	Snow Mountain Tiger Parrot	Psittacella lorentzi	Painted Tiger Parrot	Psittacella picta	Proposed split based on differences in plumage (Gregory 2017; HBW/Birdlife).
PS 11.2	Caatinga Antshrike	Thamnophilus capistratus	Barred Antshrike	Thamnophilus doliatus	Proposed split based on bioacoustic, morphological and phylogenetic differences and reported sympatry/parapatry (SACC 890).
AS 11.2	Perija Antpitta, Sierra Nevada Antpitta, Muisca Antpitta, Cajamarca Antpitta, Junin Antpitta, Urubamba Antpitta, Bolivian Antpitta	Grallaria saltuensis, G. spatiator. G. rufula, G. cajamarcae, G. obscura, G. occabambae, G. cochabambae	Rufous Antpitta	Grallaria rufula	Accepted split of currently recognized subspecies to full species based on phylogenetic, vocal and, where pertinent, morphological differences (Chesser et al. 2020; Isler et al. 2020; SACC 883). English name of G. spatiator is provisional.
AS 11.2	Equatorial Antpitta	Grallaria saturata	Rufous Antpitta	Grallaria rufula	Accepted split of resurrected subspecies to full species based on phylogenetic and vocal differences (Chesser et al. 2020; Isler et al. 2020; SACC 883).
*AS 11.2*	Chami Antpitta, Chachapoya Antpitta, Panao Antpitta, Oxapampa Antpitta, Ayacucho Antpitta, Puno Antpitta	Grallaria alvarezi, Grallaria gravesi, Grallaria oneilli, Grallaria centralis, Grallaria ayacuchensis, Grallaria sinaensis	Rufous Antpitta	Grallaria rufula	Accepted new species within the Rufous Antpitta complex based on phylogenetic, vocal and, where pertinent, morphological differences (Chesser et al. 2020; Isler et al. 2020; SACC 883). English names of G. gravesi and G. oneilli are provisional.
AS 11.2	Biak Myzomela	Myzomela rubrobrunnea	Dusky Myzomela	Myzomela obscura	Biak Myzomela Myzomela rubrobrunnea is split from Dusky Myzomela M. obscura based on morphological differences (Gregory 2017; HBW/Birdlife).
AS 11.2	Moluccan Myzomela, Red-tinged Myzomela	Myzomela simplex, Myzomela rubrotincta	Dusky Myzomela	Myzomela obscura	Moluccan Myzomela Myzomela simplex (including ssp. mortyana) and Red-tinged Myzomela Myzomela rubrotincta are splits from Myzomela obscura based on differences in plumage, size and DNA (Eaton et al. 2016, 2021; HBW/Birdlife).
AS 11.2	Reddish Myzomela	Myzomela erythrina	Red Myzomela	Myzomela cruentata	Reddish Myzomela Myzomela erythrina (including lavongai, cantans, vinacea) is split from Red Myzomela based on differences in morphology, plumage and elevation (Gregory 2017; HBW/Birdlife).
AS 11.2	Long-billed Myzomela	Myzomela longirostris	Red-collared Myzomela	Myzomela rosenbergii	Accepted split based on morphometric differences and distinctive female plumage (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
AS 11.2	Rennell Gerygone	Gerygone citrina	Fan-tailed Gerygone	Gerygone flavolateralis	Accepted split based on differences in plumage and eye color, and biogeography (Dutson 2011; HBW/Birdlife).
NEW 11.2	Satin Berrypecker	Melanocharis citreola	Streaked Berrypecker	Melanocharis striativentris	Newly described species based on plumage and phylogenetic analysis (Milá et al. 2021).
AS 11.2	Spotted Berrypecker	Rhamphocharis piperata	Thick-billed (formerly Spotted) Berrypecker	Rhamphocharis crassirostris	Rhamphocharis piperata is split from R. crassirostris based on morphological differences (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife). English name Spotted Berrypecker is assigned to the split species to reflect its female plumage.
AS 11.2	Western Crested Berrypecker	Paramythia olivacea	Eastern Crested Berrypecker	Paramythia montium	Accepted split based on morphological differences (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
AS 11.2	West African Batis	Batis occulta	Fernando Po Batis	Batis poensis	Accepted split based on differences in plumage and size (Sinclair & Ryan 2003; Clements; HBW/Birdlife).
PS 11.2	Comoros Blue Vanga	Cyanolanius comorensis	(Madagascar) Blue Vanga	Cyanolanius madagascarinus	Comoros Blue Vanaga Cyanolanius comorensis (including bensoni) is a proposed split from Madagascar Blue Vanga C. madagascarinus based on morphological, plumage and vocal differences (Safford & Hawkins 2013; HBW/Birdlife).
AS 11.2	Biak Triller	Lalage leucoptera	Black-browed Triller	Lalage atrovirens	Accepted split based on differences in plumage and voice (Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
AS 11.2	Giant Grey Shrike	Lanius giganteus	Chinese Grey Shrike	Lanius sphenocercus	Accepted split on the basis of strong morphological divergence including where ranges approach; habitat differences; and genetic divergence (Svensson et al. 2009; Olsson et al. 2010; Panov et al. 2011; Dickinson & Christidis 2014).
AS 11.2	Biak Fantail	Rhipidura kordensis	Northern Fantail	Rhipidura rufiventris	Accepted split on the basis of vocal and plumage differences (Gregory 2017; HBW/Birdlife).
AS 11.2	Tanimbar Monarch	Carterornis castus	White-naped Monarch	Carterornis pileatus	Accepted split based on structural, plumage and bioacoustic differences (King 1997; Eaton et al. 2016; HBW/Birdlife; Clements). The English name Tanimbar Monarch is prefered over Loetoe Monarch following HBW/Birdlife and Eaton et al. (2016).
AS 11.2	Mussau Flycatcher, Velvet Flycatcher, Dyaul Flycatcher	Myiagra hebetior, Myiagra eichhorni, Myiagra cervinicolor	Velvet Flycatcher	Myiagra hebetior	Accepted three-way split of Myiagra hebetior based on morphometric differences, strikingly different female plumage. and vocalizations (Gregory 2017; HBW/Birdlife). Note English name Velvet Flycatcher is assigned to Myiagra eichhorni.
AS 11.2	Wetar Oriole	Oriolus finschi	Timor (Olive-brown) Oriole	Oriolus melanotis	Accepted split based on strong genetic divergence and substantial vocal and plumage differences (Eaton et al. 2016; Jønsson et al. 2019; HBW/Birdlife).
AS 11.2	Arabian Lark	Eremalauda eremodites	Dunn's Lark	Eremalauda dunni	Accepted split based on differences in size, small but consistent differences in plumage, and reported deep genetic divergence (Shirihai & Svensson 2018).
AS 11.2	Sumatran Bulbul	Ixos sumatranus	Javan (Sunda) Bulbul	Ixos virescens	Accepted split based on plumage and vocal differences (Eaton et al. 2016).
AS 11.2	Camiguin Bulbul	Hypsipetes catarmanensis	Yellowish Bulbul	Hypsipetes everetti	Accepted split based on vocal and plumage differences (Allen 2020; HBW/Birdlife).
AS 11.2	Siberian House Martin	Delichon lagopodum	Common House Martin	Delichon urbicum	Accepted split based on morphological and vocal differences and syntopic nesting (Leader et al. 2021).
AS 11.2	Tenggara Paradise Flycatcher	Terpsiphone floris	Blyth's Paradise Flycatcher	Terpsiphone affinis	Accepted split based on bioacoustic, morphological and phylogenetic data. Includes ssp. sumbaensis (Eaton et al. 2016; Fabre et al. 2012).
AS 11.2	Bornean Black Magpie	Platysmurus aterrimus	Malayan Black Magpie	Platysmurus leucopterus	Accepted split based on substantial plumage and vocal differences (Eaton et al. 2016; BLI/HBW).
AS 11.2	Small Crow	Corvus samarensis	Slender-billed Crow	Corvus enca	Accepted split based on significant vocal differences and morphology. Includes ssp. sierramadrensis (see Allen 2020).
AS 11.2	Palawan Crow	Corvus pusillus	Slender-billed Crow	Corvus enca	Accepted split based on plumage, bill morphology and major vocal differences (Allen 2020).
AS 11.2	Obi Paradise-crow	Lycocorax obiensis	Halmahera Paradise-crow	Lycocorax pyrrhopterus	Accepted split based on pronounced vocal and plumage differences (Eaton et al. 2016; HBW/Birdlife).
AS 11.2	Black-capped Robin	Heteromyias armiti	Ashy Robin	Heteromyias albispecularis	Black-capped Robin Heteromyias armiti (including rothschildi) is split from H. albispecularis based on differences in genetics, plumage and vocalizations (Christidis et al. 2011; Beehler & Pratt 2016; Gregory 2017; HBW/Birdlife).
PS 11.2	Ishigaki Tit	Parus nigriloris	Japanese Tit	Parus minor	Proposed split based on striking differences in plumage and evidently in vocalizations (Brazil 2018).
AL 11.2	Alpine Leaf Warbler	Phylloscopus occisinensis	Tickell's Leaf Warbler	Phylloscopus affinis	Accepted lump based on bioacoustic, morphological and phylogenetic data. Treat as a subspecies (Zhang et al. 2019).
AS 11.2	Lompobattang Leaf Warbler	Phylloscopus sarasinorum	Sulawesi Leaf Warbler	Phylloscopus nesophilus	Accepted split based on bioacoustic and morphological differences. Note that new English name follows the more range-restricted taxon which retains the scientific name of the formerly combined species. The more widespread form, P. nesophilus, retains the English name of "Sulawesi Leaf Warbler" (Berryman & Eaton 2020).
NEW 11.2	Kilombero Cisticola	Cisticola bakerorum			Newly described species based on phylogenetics, morphology, and distinctive vocalizations (Fjeldså et al. 2020).
NEW 11.2	White-tailed Cisticola	Cisticola anderseni			Newly described species based on phylogenetics, morphology, and distinctive vocalizations (Fjeldså et al. 2020).
AS 11.2	Delicate Prinia	Prinia lepida	Graceful Prinia	Prinia gracilis	Split of Prinia lepida (including akyildizi, irakensis, carpenteri, lepida, and stevensi) from P. gracilis is based on differences in morphometrics, plumage, and vocalizations, and mtDNA divergence (Alström et al. 2021).
AS 11.2	Brown-tailed Apalis	Apalis flavocincta	Yellow-breasted Apalis	Apalis flavida	Brown-tailed Apalis Apalis flavocincta (including viridiceps) is split from A. flavida based on habitat, plumage and vocal differences (Sibley & Monroe 1990; HBW/Birdlife; Borrow pers. comm.; Redman pers. comm.).
PS 11.2	Yunnan Parrotbill	Sinosuthora ricketti	Brown-winged Parrotbill	Sinosuthora brunnea	Proposed split based on DNA analysis, morphology and difference in calls (Deignan 1964; Robson 2007; Penhallurick & Robson 2009; Yeung et al. 2011; HBW/Birdlife). However, status of the little-studied nominate ssp. S. b. brunnea, which has some morphological features shared with ricketti, means further analysis of the Brown-winged Parrotbill complex is required (Eaton, pers. comm.).
AS 11.2	Grey-hooded Babbler	Cyanoderma bicolor	Chestnut-winged Babbler	Cyanoderma erythropterum	Accepted split based on plumage, bioacoustics and phylogenetic divergence (Eaton et al. 2016; HBW/Birdlife; Cros et al. 2020). Includes rufum.
AS 11.2	Visayan Babbler	Sterrhoptilus affinis	Black-crowned (Calabarzon) Babbler	Sterrhoptilus nigrocapitatus	Accepted split based on substantial phylogenetic divergence and paraphyly, as well as consistent plumage differences (Hosner et al. 2018).
AS 11.2	Sunda Scimitar Babbler	Pomatorhinus bornensis	Javan (Chestnut-backed) Scimitar Babbler	Pomatorhinus montanus	Accepted split based on substantial vocal differences and fairly distinct plumage (Eaton et al. 2016).
AS 11.2	Malayan Black-capped Babbler, Bornean Black-capped Babbler	Pellorneum nigrocapitatum, Pellorneum capistratoides	Javan Black-capped Babbler	Pellorneum capistratum	Accepted split of P. nigrocapitatum and P. capistratoides (including morrelli) from P. capistratum on the basis of pronounced vocal, plumage and genome-wide differences (Puan et al. 2020; Eaton et al. 2021, HBW/Birdlife).
AS 11.2	Green-fronted White-eye	Zosterops minor	Black-fronted White-eye	Zosterops chrysolaemus	Accepted split based on distinct morphological differences (Beehler & Pratt 2016; Gregory 2017). Includes rothschildi as a subspecies. Note that the species epithet "minor" follows the split form, while the name "chrysolaemus" is assigned to the form retaining the original English name.
AS 11.2	Oya Tabu White-eye	Zosterops crookshanki	Capped White-eye	Zosterops fuscicapilla	Accepted split based on morphological and vocal differences (Beehler & Pratt 2016; Gregory 2017).
AS 11.2	Bougainville White-eye	Zosterops hamlini	Grey-throated White-eye	Zosterops rendovae	Accepted split based on phylogenetic divergence and morphological differences (Moyle et al. 2009; Gregory 2017).
AS 11.2	Guadalcanal White-eye	Zosterops oblitus	Grey-throated White-eye	Zosterops rendovae	Accepted split based on deep phylogenetic divergence (Manthey et al. 2020).
AS 11.2	Palawan Fairy-bluebird	Irena tweeddalii	Asian Fairy-bluebird	Irena puella	Accepted split based on phylogenetic divergence and morphometric and plumage differences (HBW/BLI; Moltesen et al. 2012; Allen 2020).
PS 11.2	Visayan Fairy-bluebird, Mindanao Fairy-bluebird	Irena ellae, Irena melanochlamys	Luzon (Philippine) Fairy-bluebird	Irena cyanogastra	Proposed splits based on phylogenetic divergence and differences in plumage (Moltesen et al. 2012; Hosner et al. 2018).
AS 11.2	Siamese Pied Myna, Javan Pied Myna	Gracupica floweri, Gracupica jalla	(Indian) Pied Myna	Gracupica contra	Accepted splits based on genetic divergence and morphological features. G. floweri and G. jalla are monotypic. G. contra includes superciliaris as a subspecies and sordida synonymized with the nominate (Baveja et al. 2020).
AS 11.2	Visayan Rhabdornis	Rhabdornis rabori	Stripe-breasted Rhabdornis	Rhabdornis inornatus	Accepted split based on plumage and structural differences (Collar 2011b; Allen 2020; HBW/Birdlife; Clements).
AS 11.2	Tanzanian Illadopsis	Illadopsis distans	Pale-breasted Illadopsis	Illadopsis rufipennis	Split Illadopsis distans from I. rufipennis based on morphological and bioacoustic differences (Zimmerman et al. 1996; Sinclair & Ryan 2003; Nguembock et al. 2009; HBW/Birdlife).
AS 11.2	Dayak Blue Flycatcher	Cyornis montanus	Javan Blue Flycatcher	Cyornis banyumas	Accepted split based on vocal, plumage and morphometric traits (Eaton et al. 2016; Gwee et al. 2019).
AS 11.2	Sumba Jungle Flycatcher	Cyornis stresemanni	Flores (Russet-backed) Jungle Flycatcher	Cyornis oscillans	Accepted split based on plumage, structural and vocal differences (Eaton et al. 2016, 2021; HBW/Birdlife).
AS 11.2	Crocker Jungle Flycatcher	Cyornis ruficrissa	Rufous-tailed Jungle Flycatcher	Cyornis ruficauda	Accepted split based on bioacoustic differences. Includes ssp. isola (Gwee et al. 2019; Eaton et al. 2016).
AS 11.2	Sulu Jungle-flycatcher	Cyornis ocularis	Rufous-tailed Jungle Flycatcher	Cyornis ruficauda	Accepted split based on vocalizations and distinctive eye-ring color (Gwee et al. 2019; Allen 2020).
AS 11.2	Chinese Vivid Niltava	Niltava oatesi	Taiwan Vivid Niltava	Niltava vivida	Accepted split based on morphometric, plumage, and bioacoustic differences (Rasmussen & Anderton 2005; HBW/Birdlife). English names tentative.
AS 11.2	Short-tailed Akalat	Sheppardia poensis	Bocage's Akalat	Sheppardia bocagei	Sheppardia poensis (including ssp granti, kungwensis, kaboboensis, and schoutedeni) is split from Sheppardia bocagei based on significant bioacoustic, morphological, and habitat differences (Prigogine 1987; Borrow & Demey 2001; HBW/Birdlife).
AS 11.2	Okinawa Robin	Larvivora namiyei	Ryukyu Robin	Larvivora komadori	Accepted split based on deep genetic divergence coupled with bioacoustic and morphological differences (Saitoh et al. 2015; Brazil 2018; HBW/Birdlife).
PS 11.2	Izu Robin	Larvivora tanensis	Japanese Robin	Larvivora akahige	Proposed split based on morphological, bioacoustic and habitat differences (Brazil 2018; HBW/Birdlife).
AS 11.2	Ryukyu Flycatcher	Ficedula owstoni	Narcissus Flycatcher	Ficedula narcissina	Accepted split based on genetic and bioacoustic differences (Leader et al. 2013; Dong et al. 2015; Saitoh et al. 2015; Brazil 2018; HBW/Birdlife). Treat as monotypic following Ornithological Society of Japan (2000). Includes ssp. shonis and jakuschima.
AS 11.2	Atlas Wheatear	Oenanthe seebohmi	Northern Wheatear	Oenanthe oenanthe	Split based on striking differences in plumage and some bioacoustic differences (Shirihai & Svensson 2018; HBW/Birdlife).
PS 11.2	Rusty-breasted Wheatear	Oenanthe frenata	Buff-breasted (Red-breasted) Wheatear	Oenanthe bottae	Proposed split based on morphological differences (HBW/Birdlife).
AS 11.2	Maghreb Wheatear	Oenanthe halophila	Mourning Wheatear	Oenanthe lugens	Accepted split based on differences in degree of sexual dimorphism, song, and habitat (Shirihai & Svensson 2018).
AS 11.2	Basalt Wheatear	Oenanthe warriae	Mourning Wheatear	Oenanthe lugens	Accepted split based on unique habitat, apparent lack of mixing, and distinctive plumage (Shirihai & Svensson 2018).
AS 11.2	Javan Leafbird	Chloropsis cochinchinensis	Blue-winged Leafbird	Chloropsis moluccensis	Accepted split of Chloropsis cochinchinensis of Java and the widespread Blue-winged Leafbird C. moluccensis based on differences in plumage and deep mtDNA divergence (Moltesen et al. 2012; HBW/BLI; Eaton et al. 2016). Note change of scientific name of Blue-winged Leafbird with the split.
AS 11.2	Greyish-crowned Leafbird	Chloropsis lazulina	Orange-bellied Leafbird	Chloropsis hardwickii	Accepted split based on phylogenetic divergence and plumage differences. Includes ssp. melliana (HBW/BLI; Moltesen et al. 2012)
AS 11.2	Flame-crowned Flowerpecker	Dicaeum kampalili	Yellow-crowned Flowerpecker	Dicaeum anthonyi	Accepted split based on plumage differences (HBW/BLI; Allen 2020). Note change of English name of D. anthonyi with the split.
PS 11.2	Northern Buzzing (Obscure) Flowerpecker	Dicaeum obscurum	Southern Buzzing (White-bellied) Flowerpecker	Dicaeum hypoleucum	Proposed split based on phylogenetic divergence, major differences in plumage, and differences in calls (Hosner et al. 2018; Allen 2020). English names under discussion.
PS 11.2	Yellow-chinned Sunbird	Anthreptes tephrolaemus	Grey-chinned Sunbird	Anthreptes rectirostris	Split based on differences in plumage and very different calls (HBW/Birdlife, Borrow in litt.).
AS 11.2	Stripe-breasted Seedeater	Crithagra striatipectus	Reichard's Seedeater	Crithagra reichardi	Accepted split based on consistent differences in plumage (Turner 2013, Turner & Pearson 2015; Dickinson & Christidis 2014; Redman pers. comm., HBW/Birdlife).
AS 11.2	Mindanao Serin	Chrysocorythus mindanensis	Indonesian (Mountain) Serin	Chrysocorythus estherae	Accepted split based on significant plumage and structural differences (HBW/Birdlife; Eaton et al 2016; Allen 2020).
AS 11.2	Cinnamon-bellied Saltator, Olivaceous Saltator	Saltator grandis, Saltator olivascens	Blue-grey (Greyish) Saltator	Saltator coerulescens	Accepted splits based on vocal and genetic differences (Chaves et al. 2013; SACC 879). S. grandis includes ssp. vigorsii, plumbiceps, yucatanensis, hesperis and brevicaudus. S. olivascens includes ssp. plumbeus and brewsteri. English names tentative pending SACC.
AS 11.1	Yungas Guan	Penelope bridgesi	Dusky-legged Guan	Penelope obscura	Split based on strong allopatry and biometric differences (Evangelista-Vargas & Silveira 2018; SACC 875).
PS 11.1	Yunnan Pheasant	Phasianus elegans	Turkestan (Common) Pheasant	Phasianus colchicus	Proposed split based primarily on mtDNA divergence (Liu et al. 2020). Monotypic.
PS 11.1	Chinese Pheasant	Phasianus torquatus	Turkestan (Common) Pheasant	Phasianus colchicus	Proposed split based primarily on mtDNA divergence (Liu et al. 2020). Polytypic. Includes torquatus, strauchi–vlangallii and formosanus groups.
AL 11.1	Vaurie's Nightjar	Caprimulgus centralasicus	European Nightjar	Caprimulgus europaeus	Taxonomic status unclear. Known only from a single specimen. Recent mtDNA studies suggest that it may be synonymous with European Nightjar C. e. plumipes (Schweizer et al. 2020; Kirwan & Schweizer 2020).
AL 11.1	Mato Grosso Swift	Chaetura viridipennis	Chapman's Swift	C. chapmani	Restoration of Mato Grosso Swift to a subspecies of Chapman's Swift is based on genetic revision of genus Chaetura (Chesser et al. 2018, SACC 841).
AS 11.1	Ashy-tailed Swift	Chaetura andrei	Vaux's Swift	C. vauxi	Accepted split of Ashy-tailed Swift from Vaux's Swift is based on genetic revision of genus Chaetura (Chesser et al. 2018, SACC 841)
AS 11.1	Diamantina Sabrewing	Campylopterus diamantinensis	Grey-breasted Sabrewing	Campylopterus largipennis	Accepted split from C. largipennis based on Lopes et al. (2017); SACC 755. English name adopted from SACC 859.
PS 11.1	"Northern" Silvery Grebe	Podiceps juninensis	"Southern" Silvery Grebe	Podiceps occipitalis	Proposed split based on morphology, non-migratory behavior, lack of distinct breeding plumage, and higher-pitched voice. English names provisional (SACC 864).
AS 11.1	Magellanic Snipe	Gallinago magellanica	South American Snipe	Gallinago paraguaiae	Accepted split based on vocalizations and displays (Miller et al. 2019; SACC 843). English names provisional.
PS 11.1	Galapagos Frigatebird	Fregata magnificens	Magnificent Frigatebird	Fregata rothschildi	Proposed split based on strong genetic differentiation between the isolated Galapagos population, F. magnificens and the widespread taxon, F. rothschildi (Hailer et al. 2011; SACC 872).
AS 11.1	Annobon Scops Owl	Otus feae	African Scops Owl	Otus senegalensis	Split based on morphological and vocal differences (Collar & Boesman 2020).
AS 11.1	Arabian Eagle-Owl	Bubo milesi	Spotted Eagle-Owl	Bubo africanus	Accepted split based on morphological and acoustic differences (Collar & Boesman 2019).
PS 11.1	Northern Olive Woodpecker	Dendropicos ruwenzori	Southern Olive Woodpecker	Dendropicos griseocephalus	Proposed split based on molecular species delimitation methods and estimates of gene flow. D. ruwenzori includes subspecies kilimensis (Fuchs et al. 2020).
AL 11.1	Northern Crested Caracara	Caracara cheriway	(Southern) Crested Caracara	Caracara plancus	Accepted lump based on short genetic distance and indiscriminately mixed plumage characters in their area of overlap (SACC 878).
AS 11.1	Ornate Pitta	Pitta concinna	Elegant Pitta	Pitta elegans	Split based on bioacoustic and plumage differences. Parent species, P. elegans, retains its original English name (Yue et al. 2020).
AS 11.1	Banda Sea Pitta	Pitta vigorsii	Elegant Pitta	Pitta elegans	Split based on bioacoustic and plumage differences (Yue et al. 2020).
PL 11.1	Scalloped Woodcreeper	Lepidocolaptes falcinellus	Scaled Woodcreeper	Lepidocolaptes squamatus	Proposed lump based on minor plumage differences, vocal (call) similarities, and lack of genetic data (SACC 881).
AL 11.1	Layard's Woodcreeper	Lepidocolaptes layardi	Rondonia Woodcreeper	Lepidocolaptes fuscicapillus	Accepted lump based on lack of significant vocal and genetic differences. English name of the fused species ultimately to be determined but treat as Rondonia Woodcreeper for now (SACC 868).
AS 11.1	Chinchipe Spinetail	Synallaxis chinchipensis	Necklaced Spinetail	Synallaxis stictothorax	Accepted split based on morphological and vocal distinctions (Stopiglia et al. 2020; SACC 882).
AS 11.1	Northern Rufous-winged Antwren	Herpsilochmus frater	Southern Rufous-winged Antwren	Herpsilochmus rufimarginatus	Split based on significant vocal differences and some phenotypic differences. English names tentative. H. frater includes exiguus as a subspecies (Boesman 2016; SACC 870).
AS 11.1	Utcubamba Tapaculo	Scytalopus intermedius	Blackish Tapaculo	Scytalopus latrans	Accepted split from Blackish Tapaculo to which it is only distantly related. More closely related to Large-footed Tapaculo, S. macropus (Cadena et al. 2020; SACC 858).
AS 11.1	Turkestan Short-toed Lark	Alaudala heinei	Lesser (Mediterranean) Short-toed Lark	Alaudala rufescens	Split based on phylogenetic divergence (Alström et al. 2020). Includes aharonii, pseudobaetica and persica.
AS 11.1	Rufous Limestone Babbler	Gypsophila calcicola	Limestone Wren-Babbler (Variable Limestone Babbler)	Gypsophila crispifrons	Split based on molecular phylogeny and bioacoustic differences (Gwee et al. 2020).
AS 11.1	Annam Limestone Babbler	Gypsophila annamensis	Limestone Wren-Babbler (Variable Limestone Babbler)	Gypsophila crispifrons	Split based on molecular phylogeny and bioacoustic differences (Gwee et al. 2020).
PS 11.1	"Coal-black" Thrush	Turdus anthracinus	Chiguanco Thrush	Turdus chiguanco	Proposed split based on genetic and morphological differences (SACC 871).
AS 11.1	Taiwan Bullfinch	Pyrrhula owstoni	Grey-headed Bullfinch	Pyrrhula erythaca	Accepted split based on phylogenetic, morphological and vocal differences (Dong et al. 2020).
AS 11.1	Bonin Greenfinch	Chloris kittlitzi	Grey-capped Greenfinch	Chloris sinica	Accepted split based on deep genetic divergence and morphological differences (Saitoh et al. 2015; Saitoh et al. 2020).
AS 11.1	Yungas Sparrow	Rhynchospiza dabbenei	Stripe-capped (Chaco) Sparrow	Rhynchospiza strigiceps	Accepted split based on morphological, genetic, biogeographical and vocal evidence (Areta et al. 2019; SACC 842)
AS 11.1	Moss-backed Sparrow	Arremon dorbignii	Saffron-billed Sparrow	Arremon flavirostris	Accepted split based on morphological, vocal and genetic differences (Buainain et al. 2016; SACC 874).
PS 10.2	Donaldson-Smith's Turaco	Menelikornis (Tauraco) donaldsoni	White-cheeked Turaco	Menelikornis (Tauraco) leucotis	Proposed split based on genetic and phenotypic differences and parapatry/possible syntopy (Perktaş et al. 2020).
PS 10.2	Eastern Black-billed Turaco	Tauraco emini	(Western) Black-billed Turaco	Tauraco schuettii	Proposed split based on polyphyly with phenotypic differences (Perktaş et al. 2020). English names under discussion.
PS 10.2	Reichenow's Turaco	Tauraco reichenowi	Livingstone's Turaco	Tauraco livingstonii	Proposed split based on polyphyly with phenotypic differences (Perktaş et al. 2020).
NEW 11.1	White-winged Tapaculo	Scytalopus krabbei sp. nov.			New species: Krabbe, Schulenberg, Hosner, et al., 2020 (SACC 852).
NEW 11.1	Jalca Tapaculo	Scytalopus frankeae sp. nov.			New species: Krabbe, Schulenberg, Hosner, et al., 2020 (SACC 853).
NEW 11.1	Ampay Tapaculo	Scytalopus whitneyi sp. nov.			New species: Krabbe, Schulenberg, Hosner, et al., 2020 (SACC 854).
AS 11.1	Loja Tapaculo	Scytalopus androstictus	Paramo Tapaculo	Scytalopus opacus	Accepted split based on different calls and differences in mtDNA (SACC 855).
PS 10.2	Saharan Scrub Warbler	Scotocerca saharae	'Streaked' Scrub Warbler	Scotocerca inquieta	Proposed split of allopatric Scrub Warbler populations, which differ genetically (11,5 cytb mt-DNA), by song, and morphology (Shirihai & Svensson 2018; Handbook Western Palaearctic birds). S. saharae would include ssp theresae. Recognition pending formally published paper.
NEW 10.2	Peleng Leaf Warbler	Phylloscopus suaramerdu			Proposed new species: Rheindt et al. 2020. Tentatively add as subspecies of P. poliocephalus pending evaluation of revision of the entire species complex.
NEW 10.2	Taliabu Leaf Warbler	Phylloscopus emilsalimi			Proposed new species: Rheindt et al. 202). Tentatively add as subspecies of P. poliocephalus pending evaluation of revision of the entire species complex.
AS 11.1	Sumatran Blue Robin	Myiomela sumatrana	Sunda Robin (Javan Blue Robin)	Myiomela diana	Accepted split (Ng et al. 2020).
AS 10.2	Malaysian Crested Argus	Rheinardia nigrescens	(Vietnamese) Crested Argus	Rheinardia ocellata	Accepted split based on plumage, crest morphology and color, and vocalizations (Davison et al. 2020).
PL 10.2	Canary Islands Oystercatcher	Haematopus meadewaldoi	Eurasian Oystercatcher	Haematopus ostralegus	Treat as a distinctive subspecies (Senfeld et al. 2019).
AS 10.2	White-faced Plover	Charadrius dealbatus	Kentish Plover	Charadrius alexandrinus	Recent phylogenetic studies support treating C. dealbatus as a separate species (Sadanandan et al. 2019; Wang et al. 2019).
PS 10.2	Great White Heron	Ardea occidentalis	Great Blue Heron	Ardea herodias	Proposed split of white morph subspecies based on analyses of assortative mating (McGuire et al. 2019; NACC 2020-A-10). Declined by NACC.
PS 10.2	Haida Gwaii Saw-whet Owl	Aegolius brooksi	Northern Saw-whet Owl	Aegolius acadicus	Proposed split based on molecular evidence of limited gene flow and phenotypic differences. NACC 2020-B-8. Declined by NACC.
AL 10.2	Tawny Piculet	Picumnus fulvescens	Ochraceous Piculet	Picumnus limae	Tentatively treat as a distinctive subspecies. (Lima et al. 2020, SACC 845)
AS 10.2	Fine-banded Woodpecker	Campethera taeniolaema	Tullberg's Woodpecker	Campethera tullbergi	Campethera taeniolaema is split from allopatric Campethera tullbergi based on genetic and plumage differences. Fuchs et al. (2017).
AS 10.2	Western Fire-eye	Pyriglena maura	White-backed (East Amazonian) Fire-eye	Pyriglena leuconota	Split Western Fire-eye from White-backed Fire-eye. (Isler & Maldonado-Coelho 2017; SACC 759).
AS 10.2	Tapajos Fire-eye	Pyriglena similis	White-backed (East Amazonian) Fire-eye	Pyriglena leuconota	Split Tapajos Fire-eye from White-backed Fire-eye. (Isler & Maldonado-Coelho 2017; SACC 759).
PS 10.2	Black-headed Fruiteater	Pipreola tallmanorum	Green-and-black Fruiteater	Pipreola riefferii	Potential split, but not subjected to molecular studies. (Sibley & Monroe 1990; Berv & Prum 2014).
PS 10.2	Venezuelan Fruiteater	Pipreola melanolaema	Green-and-black Fruiteater	Pipreola riefferii	Potential split. Berv & Prum (2014).
AS 10.2	Opalton Grasswren	Amytornis rowleyi	Striated Grasswren	Amytornis striatus	Accepted split. (Christidis et al. 2013; Black et al. 2020 a, b). English name Opalton Grasswren follows Black et al. (2020 a, b). Assigned the English name Rusty Grasswren by others (Christidis et al. 2013; Dickinson & Christidis 2014).
AS 10.2	Rufous Grasswren	Amytornis whitei	Striated Grasswren	Amytornis striatus	Accepted split Polytypic. (Black et al. 2020 a, b). English name of this polytypic species follows Black et al. (2020 a, b). Includes whitei, oweni, and newly described parvus and aenigma
NEW 10.2	Taliabu Myzomela	Myzomela wahe			Accepted new species. Rheindt et al. (2020).
AL 10.2	Northwestern Crow	Corvus caurinus	American Crow	Corvus brachyrhynchos	Slager et al. 2020; NACC 2020-C-15
AS 10.2	Palawan Drongo	Dicrurus palawanensis	Hair-crested Drongo	Dicrurus hottentottus	Accepted split. Includes ssp. cuyensis. Shakya et al. (2020).
NEW 10.2	Peleng Fantail	Rhipidura habibiei			Accepted as a new species in the Sulawesi Fantail complex as proposed in Rheindt et al. (2020).
AS 10.2	Solomons Robin	Petroica polymorpha	Pacific (Mayr's) Robin	Petroica pusilla	Solomon Robin is an accepted split from Pacific Robin. Includes polymorpha, septentrionalis, kulambangrae, and dennisi. The remaining subspecies taxa from Vanuatu, Fiji and Samoa, remain in P. pusilla with the revised English name of Mayr's Robin. Kearns et al. (2020).
AS 10.2	Seram Bush Warbler	Locustella musculus	Sulawesi (Chestnut-backed) Bush Warbler	Locustella castanea	Rheindt et al. (2020).
NEW 10.2	Taliabu Bush Warbler	Locustella portenta			Accepted new species. Rheindt et al. (2020).
AS 10.2	Western Subalpine Warbler	Curruca iberiae	(Eastern) Subalpine Warbler	Curruca cantillans	Western Subalpine Warbler is split from C. cantillans following Zuccon et al. (2020) and Svensson (2013a,b).
AS 10.2	Yellow-eyed Bristlebill	Bleda ugandae	Yellow-lored Bristlebill	Bleda notatus	Accepted split based on phylogenetic and phenotypic differences Huntley & Voelker (2016).
AS 10.2	Grey-cheeked Bulbul	Alophoixus tephrogenys	Brown-cheeked Bulbul vs Melodius Bulbul	Alophoixus bres	Accepted split based on phylogenetic and phenotypic differences Shakya et al. (2020). Note that English name, Grey-cheeked Bulbul, formerly assigned to A. bres, becomes associated with this, the split species. English name of A. bres to be determined.
AS 10.2	Penan Bulbul	Alophoixus ruficrissus	Ochraceous Bulbul	Alophoixus ochraceus	Accepted split based on phylogenetic and phenotypic differences Shakya et al. (2020). English name to be determined.
AS 10.2	Pale-faced Bulbul	Pycnonotus leucops	Flavescent Bulbul	Pycnonotus flavescens	Accepted split based on phylogenetic and phenotypic differences (Dejtaradol et al. 2016; Eaton et al. 2016).
PS 10.1	Schuett's Spurfowl	Pternistis schuetti	Scaly Spurfowl	P. squamatus	Proposed (10.1) split of Schuett's Spurfowl based on revision of genus Pternistis (Mandiwana-Neudani et al. 2019). STET SSP pending continuing research. Includes ssp maranensis
PS 10.1	Cranch's Spurfowl	Pternistis cranchi	Red-necked Spurfowl	P. afer	Proposed (10.1) split of Cranch's Spurfowl based on revision of genus Pternistis (Mandiwana-Neudani et al. 2019). Takes into account complex hybridization. STET SSP pending continuing research.
PL 10.1	Black-fronted Francolin	Pternistis atrifrons	Chestnut-naped Francolin	P. castaneicollis	Black-fronted Francolin was split from Chestnut-naped Francolin P. castaneicollis (Töpfer et al. 2014). Treated as subspecies by Mandiwana-Newdani et al. (2019) absent DNA metric. STET SP pending continuing research
AL 10.1	Hoogerwerf's Pheasant	Lophura hoogerwerfi	Salvadori's Pheasant	L. inornata	Overdue lump of poorly known species originally based on minor differences between females; males indistinguishable (Sözer et al. 2006, HBW, Eaton et al. 2016). Treat as SSP.
AS 10.1	Hudsonian Whimbrel	Numenius hudsonicus	(Eurasian) Whimbrel	N. phaeopus	Genomic phylogeography separates Nearctic whimbrels as a deep monophyletic clade with distinct plumage (Sangster et al. 2011, Tan et al. 2019). Similar vocals need study.
NEW 10.1	Whistling Long-tailed Cuckoo	Cercococcyx lemaireae	Dusky Long-tailed Cuckoo	C. mechowi	Morphologically 'identical' western populations proposed (10.1) to be recognized as a new species Cercococcyx lemaireae based on song and call differences from C. mechowi (first noted by Dowsett-Lemaire 1997) (Boesman & Collar 2019). Apparent narrow hybrid zone in Bakossi Mountains, Cameroon. Await genetics and playback responses.
AS 10.1	Maghreb Owl	Strix mauritanica	Tawny Owl	S. aluco	Accepted split (10.1) based on morphology, genetics and vocals (Brito 2005, Doña et al. 2015, Robb 2015)
AS 10.1	Sunda Owlet	Glaucidium sylvaticum	Collared Owlet	G. brodiei	Accepted split (10.1) of Sunda Owlet (G. sylvaticum) from Collared Owlet (G. brodiei; Gwee et al. 2019) largely on the basis of the primary song type, which is shared by Sumatran sylvaticum and Bornean borneense but distinctly different from that shared by the widespread continental nominate and Taiwanese pardalotum.
AS 10.1	Butterfly Coquette	Lophornis verreauxii	Festive Coquette	L. chalybeus	Accepted split (10.1) of widespread Amazonian verreauxii from the broadly allopatric E Brazilian chalybeus largely on the basis of different morphology, especially crest length, and vocal differences (del Hoyo and Collar 2014, Donegan et al. 2015, del Hoyo et al. 2019, SACC 833) ENG: Verreaux's Coquette?
NEW 10.1	Western Yellow-spotted Barbet	Buccanodon dowsetti	(Eastern) Yellow-spotted Barbet	B. duchaillui	Morphologically 'identical' western populations proposed (10.1) to be recognized as Buccanodon dowsetti sp. nov. based on very different vocals (first noted by Borrow & Demey 2001)(Boesman & Collar 2019). Replaces B. duchaillui west of Dahomey Gap. Await genetics and playback responses.
NEW 10.1	Alor Myzomela	Myzomela prawiradilagae	Crimson-hooded Myzomela	M. kuehni	New species closely related to M. kuehni, first reported by Trainor et al. (2012a,b) and formally described to science on the basis of a single specimen (Irham et al. 2019). Head color, song and call differ; genetic divergence weak .
AS 10.1	Cryptic Honeyeater	Microptilotis imitatrix	Graceful Honeyeater	M. gracilis	Accepted (10.1) split of allopatric imitatrix based on vocal repertoire differences and playback responses supplemented by genetic and morphology differences incl. eye color (Nielsen 2018). ENG
AS 10.1	Swinhoe's Prinia	Prinia striata	Himalayan [Striated] Prinia	P. crinigera	Accepted split (10.1) from Prinia crinigera based on non-sister status, vocal and morphological differences, and previously unrecognized sympatry in Yunnan (Alström et al. 2019). ENG
AS 10.1	Burmese Prinia	Prinia cooki	Deignan's [Brown] Prinia	P. polychroa	Accepted split (10.1) based on genetic, song, and morphological differences (Alström et al. 2019).
AS 10.1	Annam Prinia	Prinia rocki	Deignan's [Brown] Prinia	P. polychroa	Accepted split (10.1) based on genetic, song, and morphological differences (Alström et al. 2019).
NEW 10.1	Spectacled Flowerpecker	Dicaeum dayakorum			Distinctive new species informally documented by sightings and photographs (Edwards et al. 2009, Sykes and Loseby 2015, Boyd et al. 2016) and now described scientifically from the sole known specimen (Saucier et al. 2019). Basal Dicaeum.
PS 10.1	Flores Flowerpecker	Dicaeum rhodopygiale	Blood-breasted Flowerpecker	D. sanguinolentum	Proposed split of montane Flores endemic taxon from D. sanguinolentum, based on minor plumage and apparent vocal differences (Rheindt and Eaton 2019).
PS 10.1	Sumba Flowerpecker	Dicaeum wilhelminae	Blood-breasted Flowerpecker	D. sanguinolentum	Proposed split of endemic taxon of Sumba (where found at all altitudes) from D. sanguinolentum, based on moderately distinct plumage and striking vocal differences (Rheindt and Eaton 2019).
PS 10.1	Timor Flowerpecker	Dicaeum hanieli	Blood-breasted Flowerpecker	D. sanguinolentum	Proposed split of montane Timor endemic taxon from D. sanguinolentum, based on moderately distinct plumage and apparent vocal differences (Rheindt and Eaton 2019).
AS 9.2	West African Crested Tern	Thalasseus albididorsalis	Royal Tern	T. maximus	Genetic analysis supports sister relation of T. m. albididorsalis to T. bengalensis (Collinson et al. 2017). Elevation to species status would remove paraphyly. NACC 2020-A-9. ENG.
AS 10.1	Numfor Leaf Warbler	Phylloscopus maforensis	Island Leaf Warbler	P. poliocephalus	Morphologically distinct; genetics desired (Beehler & Pratt 2016, HBW). Alström et al. 2018 sampled subspecies pallescens from Kolombangara I (w Solomons). Restore poliocephalus.
AS 10.1	Biak Leaf Warbler	Phylloscopus misoriensis	Island Leaf Warbler	P. poliocephalus	Morphologically distinct; genetics desired (Beehler & Pratt 2016, HBW); not sampled by Alström et al. 2018.
AS 10.1	Eastern Black-eared Wheatear	Oenanthe melanoleuca	(Western) Black-eared Wheatear	O. hispanica	Accepted split of Eastern Black-eared Wheatear (O. melanoleuca from Western addresses genetic paraphyly in this Oenanthe species complex (Aliabadian et al. 2012, Schweizer et al. 2019, Jirle for Swedish Taxonomic Committee). Black-eared Wheatear O. hispanica currently includes two subspecies (hispanica, melanoleuca). But melanoleuca is sister to M. cypriaca and hybridizes extensively with O. pleschanka in northern Iran. Hispanica is sister to that clade.
AS 9.2	Stejneger's Scoter	Melanitta stejnegeri	White-winged Scoter	M. deglandi	Accepted split of Stejneger's Scoter M. stejnegeri from White-winged Scoter M. deglandi based on lack of hybridization and on morphological characters that include the black rather than brown flanks (deglandi also has brown tinged scapulars), a more obvious hook "nose" on stejnegeri, a longer white post-ocular mark on stejnegeri, and different bill coloration (HBW, NACC 2019-A-16 and references therein).
PS 9.2	Pacific Fulmar	Fulmarus rodgersii	Atlantic [Northern]	F. glacialis	Proposed split of Pacific Fulmar is based primarily on deep mtDNA divergence and minor morphological differences (Kerr and Dove 2013, NACC 2019-A-1 decline)
PS 9.2	Harlan's Hawk	Buteo harlani	Red-tailed Hawk	B. jamaicensis	Proposed species recognition of controversial Harlan's Hawk based many diagnosable differences (Clark 2018, NACC 2019-A-2 decline with two views of these highly variable Canadian buteos
AS 9.2	Australian Tern	Gelochelidon macrotarsa	Gull-billed Tern	G. nilotica	Accepted split of G. macrotarsa is based on morphological differences (Rogers et al. 2005, HBW, Schodde pers. comm). ENG Australian Gull-billed Tern
AS 9.2	Malagasy Palm Swift	Cypsiurus gracilis	African Palm Swift	C. parvus	Accepted split of Malagasy Palm Swift from African Palm Swift (C. parvus) based on vocalizations and plumage coloration (Mills et al. 2019). Includes griveaudi on Comoro Is
AL 9.2	Schouteden's Swift	Schoutedenapus schoutedeni	Scarce Swift	S. myioptilus	Probably are darker juvenile or sub-adult Scarce Swifts subspecies chapini (Fishpool 2019)
AS 9.2	Green-headed Hillstar	Oreotrochilus stolzmanni	Andean Hillstar	O. estella	Green-headed Hillstar is an accepted split from O. estella based on plumage differences and mtDNA relationship to O. melanogaster. SACC 808
NEW 9.2	Blue-throated Hillstar	Oreotrochilus cyanolaemus			Newly described species based on striking plumage differences from Andean Hillstar O. (estella) stolzmanni) (Somoza-Molina et al 2018). Genomic analysis of estella species complex desired (see HBW, SACC 808)
AS 9.2	Indochinese Roller	Coracias affinis	Indian Roller	C. benghalensis	Morphologically distinct Indochinese Roller may be more closely related to Purple-winged Roller (C. temmincki) than to Indian Roller separated by a narrow hybrid zone (Johansson et al. 2018, HBW)
AL 9.2	Barbary Falcon	Falco pelegrinoides	Peregrine Falcon	Falco peregrinus	Barbary Falcon is genetically similar to other subspecies of Peregrine Falcon and is deeply embedded in the Peregrine Falcon complex (White et al. 2013, H&M4, Fuchs et al. 2015, Wink 2015, HBW Alive).
AS 9.2	Small-headed Elaenia	Elaenia sordida	Highland Elaenia	E. obscura	Elaenia sordida is split from Highland Elaenia based on mtDNA genetics and vocals (Rheindt et al. 2008, Minns 2017, HBW, SACC 806). English name follows SACC.
AS 9.2	Ceara Woodcreeper	Xiphorhynchus atlanticus	Lesser Woodcreeper	X. fuscus	Accepted split of monotypic Atlantic Woodcreeper is based on genetic, morphological and vocal distinctions (Cabanne et al. 2014, Garcia et al. 2017, SACC 659, 809, HBW). ENG: Nordeste, Ceara?
AL 9.2	Negro Stipple-throated Antwren	Epinecrophylla pyrrhonota	Napo Stipple-throated Antwren	E. haematonota	Negro Stipple-throated Antwren was split from [Napo] Stipple-throated Antwren (Whitney et al. 2013e, SACC 589A), but vocalizations are identical and morphological differences slight (Isler and Whitney 2018, SACC 817). ENG Epinecrophylla spp become Stipplethroats
AL 9.2	Yasuni Stipple-throated Antwren	Epinecrophylla fjeldsaai	Napo Stipple-throated Antwren	E. haematonota	Yasuni Stipple-throated Antwren was split from [Napo] Stipple-throated Antwren (Whitney et al. 2013e, SACC 589A), but vocalizations are identical and morphological differences slight (Isler and Whitney 2018, SACC 817)
AS 9.2	Biak Whistler	Pachycephala (Colluricincla) melanorhyncha	Arafura [Little] Shrikethrush	C. megarhyncha	The endemic Biak Little 'Shrikethrush' C. m. melanorhyncha is a whistler, sister to Pachycephala phaionota (Marki et al. 2018). Move from Colluricincla to species of Pachycephala. Rename.
AS 9.2	Sepik-Ramu Shrikethrush	Colluricincla tappenbecki	Arafura [Little] Shrikethrush	C. megarhyncha	The following accepted splits (9.2) of the Little Shrikethrush species complex are based on genetics and morphology (Marki et al. 2018, Schodde pers. comm). Proposed split (9.2) of Sepik-Ramu Shrikethrush C. tappenbecki includes ssp madaraszi and maeandrina
AS 9.2	Rufous Shrikethrush	Colluricincla rufogaster	Arafura [Little] Shrikethrush	C. megarhyncha	Accepted split of Rufous Shrikethrush C. rufogaster includes ssp griseata and goodsoni. Ssp aelptes is included in goodsoni; gouldii and synaptica are included in nominate rufogaster
AS 9.2	Tagula Shrikethrush	Colluricincla discolor	Arafura [Little] Shrikethrush	C. megarhyncha	Monotypic
AS 9.2	Mamberamo Shrikethrush	Colluricincla obscura	Arafura [Little] Shrikethrush	C. megarhyncha	Monotypic; includes ssp hybridus
AS 9.2	Waigeo Shrikethrush	Colluricincla affinis	Arafura [Little] Shrikethrush	C. megarhyncha	Monotypic
AS 9.2	Variable Shrikethrush	Colluricincla fortis	Arafura [Little] Shrikethrush	C. megarhyncha	Includes ssp trobriandi (??) and despecta (includes neos and superflua)
NEW 9.2	Cream-eyed Bulbul	Pycnonotus pseudosimplex	Cream-vented Bulbul	P. simplex	Cream-eyed Bulbul P. pseudosimplex is a newly described species previously known as an eye-color morph of Cream-vented Bulbul P. simplex perplexus on Borneo. Cream-eyed Bulbul is a genetically distinct sister to Ashy-fronted Bulbul P. cinereifrons of Palawan (Shakya et al. 2019).
AS 9.2	Morotai White-eye	Zosterops dehaani	Cream-throated White-eye	Z. atriceps	Proposed split of Morotai White-eye is based on distinct plumage, exceptional dawn song and submontane/montane ecology (Rheindt and Eaton 2018)
AS 9.2	Wakatobi White-eye	Zosterops flavissimus	Lemon-bellied White-eye	Z. chloris	Accepted split of Wakatobi White-eye is based on morphology, genetics, and vocalizations (O'Connell et al. 2019)
PS 9.2	Saint Lucia Thrasher	Ramphocinclus sanctaeluciae	White-breasted Thrasher	R. brachyurus	Proposed split of Saint Lucia Thrasher is based on molecular phylogenetics (DaCosta et al. 2019). Await research in progress
AS 9.2	Campina Thrush	Turdus arthuri	Black-billed Thrush	T. ignobilis	Campina Thrush is an accepted split from Black-billed Thrush T. ignobilis justified by sympatry without intergradation at two Colombian localities (Cerqueira et al. 2016, Avendaño et al. 2017, Stiles and Avendaño 2019, SACC 814).
AS 9.2	Pantepui Thrush	Turdus murinus	Black-billed Thrush	T. ignobilis	Pantepui Thrush is an accepted split from Black-billed Thrush T. ignobilis based on genetic divergence (Cerqueira et al. 2016, Avendaño et al. 2017, Stiles and Avendaño 2019, SACC 814).
PS 9.2	Philippine Shortwing	Brachypteryx poliogyna	White-browed Shortwing	B. montana	Philippine and Indonesian members of the White-browed Shortwing species complex are proposed splits from the Oriental mainland taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Await full analysis of island taxa.
PS 9.2	Sumatran Shortwing	Brachypteryx saturata	White-browed Shortwing	B. montana	Philippine and Indonesian members of the White-browed Shortwing species complex are proposed splits from the Oriental mainland taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic. Await full analysis of island taxa.
PS 9.2	Bornean Shortwing	Brachypteryx erythrogyna	White-browed Shortwing	B. montana	Philippine and Indonesian members of the White-browed Shortwing species complex are proposed splits from the Oriental mainland taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic. Await full analysis of island taxa.
PS 9.2	Flores Shortwing	Brachypteryx floris	White-browed Shortwing	B. montana	Philippine and Indonesian members of the White-browed Shortwing species complex are proposed splits from the Oriental mainland taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic. Await full analysis of island taxa.
AS 9.2	Hill Blue Flycatcher	Cyornis whitei	Javan [Hill] Blue Flycatcher	C. banyumas	C. whitei is an accepted split from C. banyumas based on genetics and vocalizations (Zhang et al. 2016, Gwee et al. 2019. Note transfer of established English name Hill Blue Flycatcher to C. whitei.
AS 9.2	Dayak Blue Flycatcher	Cyornis montanus	Javan [Hill] Blue Flycatcher	C. banyumas	A Borneo endemic, the Dayak Blue Flycatcher is a proposed split from Javan [Hill] Blue Flycatcher based on vocalizations (Gwee et al. 2019). STET, pending current studies (Sheldon pers. comm.)
AS 9.2	Indochinese Blue Flycatcher	Cyornis sumatrensis	Tickell's Blue Flycatcher	C. tickelliae	Widespread Indochinese Blue Flycatcher is a proposed split from Tickell's Blue Flycatcher based on morphology and vocalizations (Rasmussen & Anderton 2005, Gwee et al. 2019, HBW)
PL 9.2	Tanahjampea Blue Flycatcher	Cyornis djampeanus	Sulawesi Blue Flycatcher	C. omissus	Taxonomic status and relationships of Tanahjampea Blue Flycatcher are uncertain (Gwee et al. 2019). Stet species for now
PS 9.2	Kalao Blue Flycatcher	Cyornis kalaoensis	Sulawesi Blue Flycatcher	C. omissus	Kalao Blue Flycatcher is a proposed split based on vocalizations (Gwee et al. 2019).
PS 9.2	Crocker Jungle Flycatcher	Cyornis ruficrissa	Rufous-tailed Jungle Flycatcher	C. ruficauda	Proposed split of Borneo subspecies of Rufous-tailed Jungle Flycatcher as Crocker Jungle Flycatcher C. ruficrissa based on vocalizations, but status uncertain (Gwee et al. 2019).
PS 9.2	Sulu Jungle Flycatcher	Cyornis ocularis	Rufous-tailed Jungle Flycatcher	C. ruficauda	Proposed split of Rufous-tailed Jungle Flycatchers on Sulu Arch as Sulu Jungle Flycatcher (C. ocularis) based on vocalizations (Gwee et al. 2019)
AS 9.2	Yucatan Gnatcatcher	Polioptila albiventris	White-lored Gnatcatcher	P. albiloris	Accepted split of Yucatan Gnatcatcher P. albiventris from White-lored Gnatcatcher is based on genetic and vocal distinctions (Smith et al 2018; NACC 2019-C-7, E-6a).
AS 9.2	Nicholson's Pipit	Anthus nicholsoni	Long-billed Pipit	A. similis	Accepted split of South African pops of Long-billed Pipit is based on their allopatric distributions (southern and East African populations separated by ca. 1 800 km), their non-migratory nature and their high cyt b sequence divergence values (Pietersen et al. 2018)
AL 9.1	Chaco Nothura	Nothura chacoensis	Spotted Nothura	N. maculosa	Treat Chaco Nothura as a subspecies of Spotted Nothura (Hayes et al. 2018, SACC 782)
SSP 9.1	Whenua Hou Diving Petrel	Pelecanoides whenuahouensis	South Georgia Diving Petrel	P. georgicus	Proposed split of (endangered) Whenua Hou Diving Petrel based primarily on slight phenotypic differences (Fischer et al. 2018). Treat provisionally as ssp of georgicus pending vocal and genetic diagnoses
AS 9.1	Rote Boobook	Ninox rotiensis	Australian [Southern] Boobook	N. boobook	Accepted split from Southern Boobook N. boobook based on genetics and vocals (Gwee et al. 2017)
AS 9.1	Timor Boobook	Ninox fusca	Australian [Southern] Boobook	N. boobook	Accepted split from Southern Boobook N. boobook based on genetics and vocals (Gwee et al. 2017)
AS 9.1	Alor Boobook	Ninox plesseni	Australian [Southern] Boobook	N. boobook	Accepted split from Southern Boobook N. boobook based on genetics and vocals (Gwee et al. 2017)
AS 9.1	Buru Boobook	Ninox hantu	Seram [Hantu] Boobook	N. squamipila	Accepted split of Buru Boobook from unrelated Seram Boobook based on genetics and vocals (Gwee et al. 2017). ENG Rename N. squamipila
AS 9.1	Green-backed Hillstar	Urochroa leucura	Rufous-gaped [White-tailed] Hillstar	U. bougueri	Green-backed Hillstar is a proposed (9.1) split from White-tailed Hillstar, renamed Rufous-gaped Hillstar (HBW Alive, Donegan et al. 2015; SACC 775, 800).
NEW 9.1	Dry-forest Sabrewing	Campylopterus calcirupicola	Grey-breasted Sabrewing	C. largipennis	Dry-forest Sabrewing is a proposed (9.1) new member of the Campylopterus largipennis species complex (Lopes et al. 2017). SACC 755, 756 and HBW accept with species status. ENG Limestone Sabrewing?
AS 9.1	Chiriqui Foliage-gleaner	Automolus exsertus	Buff-throated Foliage-gleaner	A. ochrolaemus	Chiriqui Foliage-gleaner is split from widespread Buff-throated Foliage-gleaner based on vocals (incl. playback expts), and mtDNA divergence (Freeman and Montgomery 2017, NACC 2018-A-2)
AS 9.1	Rufous-breasted Antpitta	Grallaricula leymebambae	Rusty-breasted Antpitta	G. ferrugineipectus	Van Doren et al. 2018, SACC 784 accepted
AS 9.1	Tapajos Antpitta	Myrmothera subcanescens	Thrush-like Antpitta	M. campanisona	Carneiro et al. 2018; SACC 785 accepted .
AS 9.1	Spotted Scrubwren	Sericornis maculatus	White-browed Scrubwren	S. frontalis	Accepted split follows comprehensive revision of scrubwrens and allies (Norman et al. 2018)
AS 9.1	Albertine Sooty Boubou	Laniarius holomelas	Mountain Sooty Boubou	L. poensis	Accepted split supported by eye color, vocals and preliminary DNA evidence (Voelker et al. 2010, H&M4, HBW).
NEW 9.1	Western Square-tailed Drongo	Dicrurus occidentalis	[Common] Square-tailed Drongo	D. ludwigii	Western Square-tailed Drongo is a newly described species embedded in D. ludwigii but sister to newly split Sharpe's Drongo (Fuchs et al. 2018). ENG
AS 9.1	Sharpe's Drongo	Dicrurus sharpei	[Common] Square-tailed Drongo	D. ludwigii	Sharpe's Drongo (including elgonensis, synonym) is a proposed split from Square-tailed Drongo D. ludwigii based on plumage color and genetic lineage (Fuchs et al. 2018).
AS 9.1	Fanti Drongo	Dicrurus atactus	Velvet-mantled Drongo	D. modestus	Fanti Drongo is a proposed split from the Velvet-mantled Drongo coracinus/modestus complex (Fuchs et al. 2017). ENG
AS 9.1	Glossy-backed Drongo	Dicrurus divaricatus	Fork-tailed Drongo	D. adsimilis	Glossy-backed Drongo D. divaricatus is a proposed split from the Fork-tailed Drongo species complex (Fuchs et al. 2017). D. adsimilis would retain ssp fugax. ENG
PS 9.1	Clancey's Drongo	Dicrurus apivorus	Fork-tailed Drongo	D. adsimilis	Clancey's Drongo D.a. apivorus is a proposed split from the Fork-tailed Drongo species complex (Fuchs et al. 2017).
AL 9.1	Erlanger's Lark	Calandrella erlangeri	Blanford's Lark	C. blanfordi	Treat Erlanger's Lark as a subspecies of Blanford's Lark (Stervander et al 2016)
AS 9.1	Rufous-capped Lark	Calandrella eremica	Blanford's Lark	C. blanfordi	Accepted split of Rufous-capped Lark from Blanford's Lark. Includes daaroodensis (Stervander et al. 2016)
AL 9.1	Steppe Grey Shrike	Lanius pallidirostris	Great Grey Shrike	L. excubitor	Lanius pallidirostris is split from Lanius excubitor (King 1997, Hernández et al. 2004, Panov 2011) but not by HBW, Clements, H&M4. Restore to status as ssp of excubitor pending full resolution of this complex
AS 9.1	Chivi Vireo	Vireo chivi	Red-eyed Vireo	Vireo olivaceus	Chivi Vireo is split from Red-eyed Vireo based on lack of introgression and not monophyletic (Battey and Klicka 2017, NACC 2018-B-4)
NEW 9.1	Rote Leaf Warbler	Phylloscopus rotiensis			Newly described, vocally and genetically distinct species with long bill; sister to Timor Leaf Warbler P. presbytes (Ng et al. 2018)
AS 9.1	Socotra White-eye	Zosterops socotranus	Abyssinian White-eye	Z. abyssinicus	An old outlying lineage that should be split from unrelated mainland Z. abyssinicus (Cox et al . 2014). SEQ
AS 9.1	Mbulu White-eye	Zosterops mbuluensis	Montane White-eye	Z. poliogastrus	Accepted split from artificial Montane White-eye subspecies complex Z. poliogastrus (Cox 2013, Cox et al. 2014, Pearson & Turner 2017). Is sister to Z. abyssinicus flavilateralus (Cox et al 2014). Monotypic.
AS 9.1	Pale White-eye	Zosterops flavilateralis	Abyssinian White-eye	Z. abyssinicus	Accepted split from Abyssinian White-eye (Cox 2013, Cox et al. 2014, Pearson & Turner 2017). Includes jubaensis. ENG Pale Scrub White-eye?
AS 9.1	Aldabra White-eye	Zosterops aldabrensis	Malagasy White-eye	Z. maderaspatanus	Accepted split from Malagasy White-eye. Aldabra White-eye is sister to Seychelles White-eye and, in turn, Kirk's White-eye and Malagasy White-eye (Cox et al. 2014)
AS 9.1	South Pare White-eye	Zosterops winifredae	Montane White-eye	Z. poliogastrus	Accepted split from artificial Montane White-eye subspecies complex Z. poliogastrus (Cox 2013, Cox et al. 2014, Pearson & Turner 2017). Sister to Z. pallidus?
AS 9.1	Southern Yellow White-eye	Zosterops anderssoni	African Yellow White-eye	Z. senegalensis	Accepted split from African Yellow White-eye Z. senegalensis (Cox 2013, Cox et al. 2014, Pearson & Turner 2017); includes stierlingi provisionally
AS 9.1	Broad-ringed White-eye	Zosterops eurycricotus	Heuglin's [Montane] White-eye	Z. poliogastrus	Accepted split from artificial Montane White-eye subspecies complex Z. poliogastrus (Cox 2013, Cox et al. 2014, Pearson & Turner 2017). Monotypic
AS 9.1	Green White-eye	Zosterops stuhlmanni	African Yellow White-eye	Z. senegalensis	Accepted split from African Yellow White-eye Z. senegalensis (Cox 2013, Cox et al. 2014, Pearson & Turner 2017); includes ssp toroensis, scotti
AL 9.1	Mountain White-eye	Zosterops montanus	Warbling [Japanese] White-eye	Z. japonicus	Montane White-eye is a proposed lump with revised Warbling [Japanese] White-eye complex (Lim et al. 2018). ENG
AS 9.1	Swinhoe's White-eye	Zosterops simplex	Japanese White-eye	Z. japonicus	Swinhoe's White-eye is a proposed split from the revised [Warbling] Japanese White-eye complex. It would include ssp erwini and salvadorii (Lim et al. 2018)
AL 9.1	Enggano White-eye	Zosterops salvadorii	Swinhoe's White-eye	Z. simplex	Enggano White-eye (Z. salvadorii) is a weakly defined species best treated as a subspecies of Zosterops simplex (Lim et al. 2018).
AS 9.1	Hume's White-eye	Zosterops auriventer	Indian [Oriental] White-eye	Z. palpebrosus	Z. auriventer is redefined as an upland species related to Z. everetti not Z. palpebrosus (Wells 2017). Includes ssp tahanensis and wetmorei. The name auriventer is the senior name available for mainland Asian populations named Hume’s White-eye.
AS 9.1	Sangkar White-eye	Zosterops melanurus	Indian [Oriental] White-eye	Z. palpebrosus	Sangkar White-eye is a proposed split from Oriental White-eye (Lim et al. 2018). Includes ssp buxtoni
AS 9.1	Chattering Gnatwren	Ramphocaenus sticturus	Trilling [Long-billed] Gnatwren	R. melanurus	Accepted split from Long-billed Gnatwren based on phylogenetics, voice, plumage, and sympatry; includes ssp obscurus (Smith et al. 2018, SACC 790A). ENG Rename R. melanurus 'Trilling' Gnatwren
PS 9.1	Northern Gnatwren	Ramphocaenus rufiventris	[Trilling] Long-billed Gnatwren	R. melanurus	Split trans-Andean R. rufiventris (including ardeleo and sanctaemarthae) from cis-Andean R. melanurus (Smith et al. 2018, SACC 790B). Colombian forms not fully resolved. STET PS
PL 9.1	Violet-hooded Starling	Aplonis circumscripta	Metallic Starling	A. metallica	Violet-hooded Starling is a relict split in Gill & Wright 2006, recommended by Ben King. Review underway.
PS 9.1	Ethiopian Thrush	Turdus simensis	Groundscraper Thrush	T. litsitsirupa	Ethiopian Thrush is a proposed split based on deep genetic divergence, plumage and vocal differences (Nylander et al. 2008, HBW). Stet ssp pending full analysis
AS 9.1	Himalayan Shortwing	Brachypteryx cruralis	White-browed Shortwing	B. montana	The three Asian forms of White-browed Shortwing B. montana are split from Philippine and Indonesian taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018)
AS 9.1	Chinese Shortwing	Brachypteryx sinensis	White-browed Shortwing	B. montana	The three Asian forms of White-browed Shortwing B. montana are split from Philippine and Indonesian taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic
AS 9.1	Taiwan Shortwing	Brachypteryx goodfellowi	White-browed Shortwing	B. montana	The three Asian forms of White-browed Shortwing B. montana are split from Philippine and Indonesian taxa and from each other (HBW, Eaton et al. 2016, Alström et al. 2018). Monotypic
AL 9.1	Cherrie's Tanager	Ramphocelus costaricensis	Scarlet-rumped [Passerini's] Tanager	R. passerinii	Proposal to lump Cherrie's Tanager as a subspecies of Passerini's Tanager R. passerinii is based on nondiscrimination in playback expts (Freeman and Montgomery 2017, NACC 2018-A-4). Change English name of R. passerinii to Scarlet-rumped Tanager.
PS 8.1	Ecuadorian Hermit	Phaethornis baroni	Long-billed Hermit	P. longirostris	Baron's Hermit Phaethornis baroni is treated as conspecific with Long-billed Hermit P. longirostris following SACC (136). Restoration of species status deserves reconsideration given morphological distinctions, vocal differences (see xeno-canto), allopatric range, and advances in the taxonomy of this species complex (Ridgely and Greenfield 2001, HBW). Await phylogeny?
PS 8.2	Yellow-faced Grosbeak	Caryothraustes brasiliensis	Yellow-green Grosbeak	C. canadensis	Yellow-faced Grosbeak of the Atlantic forests of Brasil is a proposed split based on morphology and vocalizations (Tonetti et al. 2017). SACC proposal?
SSP 8.2	'Trindade' Frigatebird	Fregata trinitatis	Lesser Frigatebird	F. ariel	Proposal to split endangered Lesser Frigatebirds of the Atlantic Ocean based on bone and plumage differences (Olson 2017, SACC 768). Stet SSP
NEW 8.2	Santa Marta Screech Owl	Megascops gilesi			Krabbe 2017; long awaited! SACC 769
AL 8.2	Napo Screech Owl	Megascops napensis	Roraiman Screech Owl	M. roraimae	Lump Napo Screech Owl and Roraiman Screech Owl as M. roraimae, which has precedence (Krabbe 2017). ENG Foothill Screech Owl. SACC 771
AL 8.2	Colombian Screech Owl	Megascops colombianus	Rufescent Screech Owl	M. ingens	Species status of Colombian Screech Owl Megascops colombianus re M. ingens has been uncertain (Ridgely & Greenfield 2001, H&M, BLI, and SACC). Genetics and vocals support this lump (Krabbe 2017). SACC 770
AL 8.2	Baron's Spinetail	Cranioleuca baroni	Line-cheeked Spinetail	C. antisiensis	Lump Baron's Spinetail with Line-cheeked Spinetail due to clinal intergradation (Seeholzer & Brumfield 2017, SACC 762 accepted)
AS 8.2	Rufescent Antshrike	Thamnistes rufescens	Russet Antshrike	T. anabatinus	Accepted split of Rufescent Antshrike from Russet Antshrike based on vocals and plumage (Isler & Whitney 2017, SACC 758).
NEW 8.2	Painted Manakin	Machaeropterus eckelberryi	Striolated [Western Striped] Manakin	M. striolatus	Newly desribed species based on vocalizations only (Lane et al. 2017, SACC 761). Note that previous IOC list split polytypic M. striolatus from M. regulus, which this study advocates.
NEW 8.2	Rote Myzomela	Myzomela irianawidodoae	Sumba Myzomela	M. dammermani	Newly described on the basis of morphology and vocalizations from the island of Rote in the Lesser Sundas (Eaton et al 2016, Prawiradilaga et al. 2017)
AS 8.2	White-bellied Whipbird	Psophodes leucogaster	Black-throated [Western] Whipbird	M. nigrogularis	White-bellied [Mallee] Whipbird Psophodes leucogaster (including lashmari) is split from Black-throated [Western] Whipbird P. nigrogularis including oberon (Burbidge et al. 2017). For historical background see Schodde & Mason 1999, Christidis & Boles 2008, Toon et al. 2013. English name changes follow split
AS 8.2	Taliabu Fantail	Rhipidura sulaensis	Sulawesi [Rusty-bellied] Fantail	R. teysmanni	Taliabu Fantail is a proposed split from Rusty-bellied Fantail based on genomic analysis and vocalizations (Ng et al 2017). Two sweeps of mtDNA are invoked. ENG
AS 8.2	Maghreb Magpie	Pica mauritanica	Eurasian Magpie	P. pica	Lee et al. 2003, Song et al. 2018, HBW. Monotypic
AS 8.2	Asir Magpie	Pica asirensis	Eurasian Magpie	P. pica	Lee et al. 2003, Song et al. 2018, HBW. Monotypic
AS 8.2	Black-rumped Magpie	Pica bottanensis	Eurasian Magpie	P. pica	Lee et al. 2003, Song et al. 2018, HBW. Monotypic. ENG Tibetan vs Black-rumped
AS 8.2	Oriental Magpie	Pica serica	Eurasian Magpie	P. pica	Lee et al. 2003, Song et al. 2018, HBW. Monotypic (includes anderssoni).
AS 8.2	Lesser Lophorina	Lophorina minor	Greater [Superb Bird-of-Paradise] Lophorina	L. superba	Irestedt et al. 2017; monotypic. ENG provisional
AS 8.2	Crescent-caped Lophorina	Lophorina niedda	Greater [Superb Bird-of-Paradise] Lophorina	L. superba	Irestedt et al. 2017; includes inopinata ssp nova. ENG Crescent-caped Lophorina provisional
PS 8.2	Viscaino Thrasher	Toxostoma arenicola	LeConte's Thrasher	T. lecontei	Viscaino Thrasher is a proposed split from LeConte's Thrasher based on parapatry, genetic divergence and effective reproductive isolation (Vázquez-Miranda et al. 2017, NACC 2018-C-14 decline). Stet SSP status
AS 8.2	Banggai Jungle Flycatcher	Cyornis pelingensis	Sula [Henna-tailed] Jungle Flycatcher	C. colonus	Accepted split of Banggai Jungle Flycatcher C. pelingensis from sister ssp on Sula Island based on vocal differences, genetic divergence, and restricted gene flow (Eaton et al. 2016, Garg et al. 2018). Subspecies subsolanus invalid? (HBW) .
PS 8.2	Grey-crowned Ground Sparrow	Melozone occipitalis	White-eared Ground Sparrow	M. leucotis	Grey-crowned Ground Sparrow is a proposed split from from White-eared Ground Sparrow M. leucotis based on morphometrics, vocalizations, and genetics (Sandoval 2017ab, NACC 2018-C-7 decline). STET SSP
AS 8.2	Morelet's Seedeater	Sporophila morelleti	Cinnamon-rumped [White-collared] Seedeater	S. torqueola	Sporophila morelleti (including ssp sharpei, mutanda) is an accepted split from S. torqueola based on morphology, deep genetic divergence and polyphyly (Mason et al. 2018, HBW, NACC 2018-C-8). ENG: Rename S. torqueola Cinnamon-rumped Seedeater.

AS 8.1	Sclater's Crowned Pigeon	Goura sclaterii	Scheepmaker's [Southern] Crowned Pigeon	G. scheepmakeri	HBW, Gregory 2017, Bruxaux et al. 2017. G. sclaterii is sister to G. cristata; G. scheepmakeri is sister to G. victoria.
SSP 8.1	Ecuadorian Plumeleteer	Chalybura intermedia	Bronze-tailed Plumeleteer	C. urochrysia	Species status of C. b. intermedia uncertain, but see Ridgely and Greenfield 2001. Current assignment (7.4) of subspecies to C. buffoni vs C. urochrysia is provisional
SSP 8.1	Lilacine Amazon	Amazona lilacina	Red-lored Amazon	A. autumnalis	Pilgrim 2010 unpubl, Donegan et al. 2016, HBW. Stet ssp status pending full workup
NEW 8.1	Cordillera Azul Antbird	Myrmoderus eowilsoni			Newly described, distinct species sister to M. ferrugineus (Moncrieff et al. 2018, SACC 763).
AS 8.1	Purple-backed Fairywren	Malurus assimilis	Variegated Fairywren	M. lamberti	McLean et al. 2012, 2017. Putative hybrid zone with limited gene flow. Nonsister Variegated Fairywren M. lamberti would be monotypic.
AL 8.1	Liberian Greenbul	Phyllastrephus leucolepis	Icterine Greenbul	P. icterinus	Enigmatic Liberian Greenbul is deemed to be a plumage variant of Icterine Greenbul P. icterinus (Phalan et al. 2013, Collinson et al. 2017, HBW)
AS 8.1	Sclater's Nightingale-Thrush	Catharus maculatus	'Gould's [Spotted] Nightingale-Thrush	C. dryas	Halley et al. 2017
SSP 8.1	Hainan Laughingthrush	Garrulax monachus	Black-throated Laughingthrush	G. chinensis	Wu et al. 2012, HBW. Slight genetic differences. No vocals. Didn't include similar G.c. germaini, or G. propinquus. Stet as PS subspecies of G. chinensis
SSP 8.1	Ashambu Blue Robin	Sholicola ashambuensis	White-bellied Blue Robin	S. albiventris	Described as a new species (Robin et al. 2017). More white below; vocals. English name provisional. Treat provisionally (8.1) as subspecies of S. albiventris
AS 8.1	Western Miombo Sunbird	Cinnyris gertrudis	Eastern Miombo [Double-collared] Sunbird	C. manoensis	Irwin et al. 2014, HBW, Bowie MS. Previous species name pintoi is a junior subjective synonym of gertrudis. English names under discussion
AS 8.1	Peruvian Pipit	Anthus peruvianus	Yellowish Pipit	A. lutescens	Peruvian Pipit A. peruvianus is split from Yellowish Pipit A. lutescens (Van Els and Norambuena 2017, HBW, SACC 765)
AS 8.1	Puna Pipit	Anthus brevirostris	Campos [Short-billed] Pipit	A. furcatus	Puna Pipit A. brevirostris is split from Short-billed Pipit A. furcatus (Van Els and Norambuena 2017). ENG

PS 7.3	Western Willet	Tringa inornata	[Eastern] Willet	T. semipalmata	Stet subspecies rank for now (Oswald et al. 2016. NACC 2017-A-10 decline).
AL 7.3	Thayer's Gull	Larus thayeri	Iceland Gull	L. glaucoides	Treat as subspecies of Iceland Gull (Godfrey 1986, Snell 2002, NACC 2017-C-7)
PL 7.3	Fork-tailed Drongo-Cuckoo	Surniculus dicruroides	Square-tailed Drongo-Cuckoo	S. lugubris	H&M4, Eaton et al. 2016. Species limits of drongo-cuckoos uncertain. Stet for now
AS 7.3	Plume-toed Swiftlet	Collocalia affinis	Glossy Swiftlet	C. esculenta	Rheindt et al. 2017. English name provisional. Includes elachyptera, cyanoptila, vanderbilti, oberholseri
AS 7.3	Christmas Island Swiftlet	Collocalia natalis	Glossy Swiftlet	C. esculenta	Rheindt et al. 2017. Monotypic
AS 7.3	Ridgetop Swiftlet	Collocalia isonota	Glossy Swiftlet	C. esculenta	Rheindt et al. 2017. Includes bagabo
AS 7.3	Grey-rumped Swiftlet	Collocalia marginata	Glossy Swiftlet	C. esculenta	Rheindt et al. 2017. Includes septentrionalis
AS 7.3	Tenggara Swiftlet	Collocalia sumbawae	Glossy Swiftlet	C. esculenta	Rheindt et al. 2017. Includes sumbae
AS 7.3	Drab Swiftlet	Collocalia neglecta	Glossy Swiftlet	C. esculenta	Rheindt et al. 2017. Includes perneglecta
AS 7.3	Satin Swiftlet	Collocalia uropygialis	Glossy Swiftlet	C. esculenta	Rheindt et al. 2017. Includes albidior
DEL 7.3	Bogota Sunangel	Heliangelus zusii	Hybrid Long-tailed Sylph (Aglaiocercus kingii) X ???		Pérez-Emán et al. 2017
SSP 7.3	Mesoamerican Flicker	Colaptes mexicanoides	Northern Flicker	C. auratus	Stet subspecies for now (Manthey et al. 2017; NACC 2017-C-4)
PS 7.3	Malee Whipbird	Psophodes leucogaster	Western Whipbird	P. nigrogularis	Burbidge et al. 2017; includes ssp lashmari. See 8.2
SSP 7.3	Least Vireo	Vireo pusillus	Bell's Vireo	V. bellii	Klicka et al. 2016. Includes arizonae. NACC 2017-C-14 split vote declined
AS 7.3	Northern Shrike	Lanius borealis	Great Grey Shrike	L. excubitor	Northern Shrike is sister to Loggerhead Shrike L. ludovicianus; includes ssp sibiricus, bianchii, mollis, and funereus (Olsson et al. 2010, Johnsen et al. 2010, H&M4, NACC 2017-B-8)
AS 7.3	Natewa Silktail	Lamprolia klinesmithi	[Taveuni] Silktail	L. victoriae	Andersen et al. 2017
PS 7.3	Imeri Wren	Cyphorhinus transfluvialis	Musician Wren	C. arada	Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
PS 7.3	Ferruginous Wren	Cyphorhinus modulator	Musician Wren	C. arada	Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
PS 7.3	Grey-eared Wren	Cyphorhinus salvini	Musician Wren	C. arada	Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
PS 7.3	Rondonia Wren	Cyphorhinus interpositus	Musician Wren	C. arada	Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
PS 7.3	Grey-flanked Wren	Cyphorhinus griseolateralis	Musician Wren	C. arada	Bocalini & Silveira 2016; SACC needs proposal. Stet ssp/PS for now
SSP 7.3	'Mesoamerican' Creeper	Certhia albescens	Brown Creeper	C. americana	Manthey et al. (2011ab, 2015, 2016) NACC 2017-C-2 decline.
SSP 7.3	Grayson's Thrush	Turdus graysoni	Rufous-backed Robin	T. rufopalliatus	Stet subspecies status. Montaño-Rendon et al. (2015), NACC 2017-B-3 decline
AS 11.2	Taiwan Thrush	Turdus niveiceps	Island Thrush	T. poliocephalus	Usually treated as a subspecies of Turdus poliocephalus, but the sexually dimorphic niveiceps is not a member of the Island Thrush complex (Nylander et al. 2008; Fjeldså et al. 2020).
AS 7.3	Banasura Laughingthrush	Montecincla jerdoni	Nilgiri [Black-chinned] Laughingthrush	M. cachinnans	Praveen & Nameer 2012, Robin et al. 2017. Change genus from Trochalopteron to Montecincla. Restore previous English name Nilgiri Laughing Thrush.
AS 7.3	Ashambu Laughingthrush	Montecincla meridionale	Palani [Kerala] Laughingthrush	M. fairbanki	Praveen & Nameer 2012, Robin et al. 2017. Change genus from Trochalopteron to Montecincla
DEL 7.3	Ventania Yellow Finch	Sicalis holmbergi	Greater Yellow Finch	S. auriventris	López-Lanús 2017, SACC 748 (No)
PS 7.3	Calaveras Warbler	Oreothlypis ridgwayi	Nashville Warbler	O. ruficapilla	Stet subspecies status (Weir and Schluter 2004, Smith et al. 2005; NACC 2017-C-5
AS 7.3	Cassia Crossbill	Loxia sinesciuris	Red Crossbill	L. curvirostra	Benkman et al. 2009, Parchman et al. 2016, NACC 2017-A-4. ENG South Hills Crossbill
PL 7.3	Arctic/Hoary Redpoll	Acanthis hornemanni	Common Redpoll	A. flammea	Decline proposed lump of Arctic/Common Redpoll pending confirmation of nonassortative mating (Mason & Taylor 2015, NACC 2017-B-7 split vote.)
AS 7.3	Lesser Redpoll	Acanthis cabaret	Common Redpoll	A. flammea	Knox 2001, Ottvall et al. 2002, Marthinsen et al. 2008, Mason & Taylor 2015, BOU, H&M4, NACC 2017-B-7
AS 7.3	Baird's Junco	Junco bairdi	Yellow-eyed Junco	J. phaeonotus	Milá et al. 2016, NACC 2017-A-11
AS 7.2	Black-fronted Francolin	Pternistis atrifrons	Chestnut-naped Francolin	P. castaneicollis	Töpfer et al. 2014
AS 7.2	American Barn Owl	Tyto furcata	Western Barn Owl	T. alba	Nijman and Aliabadian 2013, König & Weick, 2009, Aliabadian et al. 2016.
AL 7.2	Archbold's Owlet-nightjar	Aegotheles archboldi	Mountain Owlet-nightjar	A. albertisi	Beehler & Pratt 2016
AS 7.2	Blue-vented Hummingbird	Amazilia hoffmanni	Steely-vented Hummingbird	A. saucerottei	Blue-vented Hummingbird is a distinct member of the Middle American A. cyanura species group, not saucerottei (Stiles & Skutch 1989, McGuire et al. 2014, Jiménez & Ornelas 2015). Note hoffmanni, not sophiae.
AS 7.2	Peruvian Racket-tail	Ocreatus peruanus	[White-]Booted Racket-tail	O. underwoodii	Schuchmann et al. 2016, SACC Apodiformes/62A
PS 7.2	Anna's Racket-tail	Ocreatus annae	[White-]Booted Racket-tail	O. underwoodii	Schuchmann et al. 2016; await more data
SSP 7.2	Choco Parakeet	Pyrrhura pacifica	Maroon-tailed Parakeet	P. melanura	Ridgely and Greenfield 2001, Donegan et al. 2016, SACC 524, HBW. Stet SSP/PS pending full revision.
AS 7.2	Rufous-booted Racket-tail	Ocreatus addae	[White-]Booted Racket-tail	O. underwoodii	Schuchmann et al. 2016; Includes annae as ssp. English name provisional
SSP 7.2	Upper Magdalena Parakeet	Pyrrhura chapmani	Maroon-tailed Parakeet	P. melanura	Fjeldsa & Krabbe 1990, Donegan et al. 2016. Stet SSP/PS pending full revision.
AS 7.2	Cordilleran Parakeet	Psittacara frontatus	Scarlet-fronted Parakeet	P. wagleri	Includes minor. Corey 1918, Sibley & Monroe 1990, Ridgely and Greenfield 2001, HBW 2014, SACC Psittaciformes/7, Donegan et al. 2016
SSP 7.2	Orinoco Amazon	Amazona bodini	Festive Amazon	A. festiva	Donegan et al. 2016; await supporting data. Stet SSP/PS pending full analysis
NEW 7.2	Tatama Tapaculo	Scytalopus alvarezlopezi			Stiles et al. 2017
AS 7.2	Cachar Bulbul	Iole cacharensis	Olive Bulbul	I. viridescens	Manawatthana et al. 2017; English name provisional
AS 7.2	Charlotte's Bulbul	Iole charlottae	Buff-vented Bulbul	I. crypta	Manawatthana et al. 2017; English name provisional. See also proposed taxonomic changes
AS 7.2	Whyte's Double-collared Sunbird	Cinnyris whytei	Ludwig's Double-collared Sunbird	C. ludovicensis	Bowie 2003, Bowie et al. 2015. Includes skye.
AS 7.1	Foveaux Shag	Leucocarbo stewarti	Otago [Stewart Island] Shag	L. chalconotus	Rawlence et al. 2016
PS 7.1	Samoan Wood Pigeon	Columba castaneiceps	Metallic Pigeon	C. vitiensis	Pratt & Mittermeier 2016. Stet as ssp pending full revision of species complex
AS 7.1	White-throated Wedgebill	Schistes albogularis	Geoffroy's Wedgebill [Wedge-billed Hummingbird]	S. geoffroyi	HBW Alive, Donegan et al. 2015. SACC 774 accepted. ENG?
AS 7.1	Merida Sunangel	Heliangelus spencei	Amethyst-throated Sunangel	H. amethysticollis	HBW Alive, Donegan et al. 2015; "Amethystine" Sunangel?
AS 7.1	Longuemare's Sunangel	Heliangelus clarisse	Amethyst-throated Sunangel	H. amethysticollis	HBW Alive, Donegan et al. 2015; "Amethystine" Sunangel?
PS 7.1	Perija Starfrontlet	Coeligena consita	Golden-bellied Starfrontlet	C. bonapartei	HBW Alive, Donegan et al. 2015; stet PS for now
PS 7.1	Golden Starfrontlet	Coeligena eos	Golden-bellied Starfrontlet	C. bonapartei	HBW Alive, Donegan et al. 2015; stet PS for now
PS 7.1	Green Inca	Coeligena conradii	Collared Inca	C. torquata	HBW Alive, Donegan et al. 2015; stet PS for now
PS 7.1	Peale's Kingfisher	Todiramphus pealei	Pacific Kingfisher	T. sacer	Pratt and Mittermeier 2016; includes manuae. Stet as ssp pending full revision of species complex
PL 7.1	Barbary Falcon	Falco pelegrinoides	Peregrine Falcon	F. peregrinus	White et al. 2013, H&M4, Fuchs et al. 2015, HBW Alive, Wink 2015. Stet PL until consensus
AS 7.1	Darwin's Flycatcher	Pyrocephalus nanus	Vermilion Flycatcher	P. [rubinus] obscurus	Carmi et al. 2016
AS 7.1	San Cristobal Flycatcher	Pyrocephalus dubius	Vermilion Flycatcher	P. [rubinus] obscurus	Carmi et al. 2016
AS 7.1	Scarlet Flycatcher	Pyrocephalus rubinus	Vermilion Flycatcher	P. [rubinus] obscurus	Carmi et al. 2016
AS 7.1	Double-collared Crescentchest	Melanopareia bitorquata	Collared Crescentchest	M. torquata	Lopes & Gonzaga 2016
PS 7.1	Samoan Myzomela	Myzomela nigriventis	Cardinal Myzomela	M. cardinalis	Pratt and Mittermeier 2016. Stet as ssp pending full revision of species complex
PS 7.1	Manua Shrikebill	Clytorhynchus powelli	Fiji Shrikebill	C. vitiensis	Pratt & Mittermeier 2016. Stet as ssp pending full revision of species complex
PS 7.1	Manua Starling	Aplonis manuae	Polynesian Starling	A. tabuensis	Pratt and Mittermeier 2016. Stet as ssp pending full revision of species complex
AS 7.1	Mediterranean Flycatcher	Muscicapa tyrrhenica	Spotted Flycatcher	M. striata	Vigano & Corso 2015, Pons et al. 2016; incl balearica
PS 7.1	Samoan Thrush	Turdus samoensis	Island Thrush	T. poliocephalus	Pratt & Mittermeier 2016
AS 7.1	Chinese Rubythroat	Calliope tschebaiewi	Himalayan [White-tailed] Rubythroat	C. pectoralis	Liu et al. 2016
AS 7.1	Genovesa Ground Finch	Geospiza acutirostris	Sharp-beaked Ground Finch	G. difficilis	Lamichhaney et al. 2015, SACC 676A-7/1; English name provisional
AS 7.1	Vampire Ground Finch	Geospiza septentrionalis	Sharp-beaked Ground Finch	G. difficilis	Lamichhaney et al. 2015, SACC 676A-7/1;English name provisional
AS 7.1	Genovesa Cactus Finch	Geospiza propinqua	'Espanola Cactus [Large Cactus] Finch	G. conirostris	Lamichhaney et al. 2015, SACC 676B-7/1; G. conirostris is sister to G. magnirostris.
AL 6.4	Violet-throated Toucanet	Aulacorhynchus cognatus	Blue-throated Toucanet	A. caeruleogularis	Winker 2016
AL 6.4	Santa Marta Toucanet	Aulacorhynchus lautus	White-throated Toucanet	A. albivitta	Winker 2016
AL 6.4	Grey-throated Toucanet	Aulacorhynchus griseigularis	White-throated Toucanet	A. albivitta	Winker 2016
AS 6.4	Chestnut-throated Flycatcher	Myiagra castaneigularis	Azure-crested Flycatcher	M. azureocapilla	Andersen et al. 2015, Clements 2016; includes whitneyi.
AS 6.4	Baliem Whistler	Pachycephala balim	Yellow-throated Whistler	P. macrorhyncha	Andersen et al. 2014, Beehler & Pratt 2016, Clements 2016
SSP 6.4	Hierro Blue Tit	Cyanistes ombriosus	African Blue Tit	Cyanistes teneriffae	Sangster 2006, Stervander et al. 2015, Illera et al. 2016; ssp of teneriffae
PS 6.4	Canary Islands Blue Tit	Cyanistes teneriffae	African Blue Tit	Cyanistes teneriffae	Sangster 2006, Stervander et al. 2015, Illera et al. 2016; includes hedwigae, ombriosus. ENG
SSP 6.4	Gran Canaria Blue Tit	Cyanistes hedwigae	African Blue Tit	Cyanistes teneriffae	Sangster 2006, Stervander et al. 2015, Illera et al. 2016; subspecies of teneriffae
PS 6.4	North African Blue Tit	Cyanistes ultramarinus	African Blue Tit	Cyanistes teneriffae	Sangster 2006, Stervander et al. 2015, Illera et al. 2016; includes degener; ENG?
SSP 6.4	Fuerteventura Blue Tit	Cyanistes degener	African Blue Tit	Cyanistes teneriffae	Sangster 2006, Stervander et al. 2015, Illera et al. 2016; subspecies of ultramarinus
PS 6.4	Cyrenaican Blue Tit	Cyanistes cyrenaicae	African Blue Tit	Cyanistes teneriffae	Sangster 2006, Stervander et al. 2015, Illera et al. 2016; monotypic
PS 6.4	La Palma Blue Tit	Cyanistes palmensis	African Blue Tit	Cyanistes teneriffae	Sangster 2006, Stervander et al. 2015, Illera et al. 2016; monotypic
AS 6.4	Mongolian Short-toed Lark	Calandrella dukhunensis	Greater Short-toed Lark	C. brachydactyla	Alström et al. 2013, Stervander 2016, Clements 2016.
AS 6.4	Streak-eared Bulbul	Pycnonotus conradi	Irrawaddy [Streak-eared] Bulbul	P. blanfordi	Garg et al. 2016
AS 6.3	Grey-faced Petrel	Pterodroma gouldi	Great-winged Petrel	P. macroptera	Wood et al. 2016
AS 6.3	Ainley's Storm Petrel	Oceanodroma cheimomnestes	Leach's Storm Petrel	O. leucorhoa	NACC 2016-C-16
AS 6.3	Townsend's Storm Petrel	Oceanodroma socorroensis	Leach's Storm Petrel	O. leucorhoa	NACC 2016-C-16
AL 6.3	Caribbean Coot	Fulica caribaea	American Coot	F. americana	Caribbean Coot is a white shield color morph/ subspecies of American Coot (HBW Alive, Donegan et al. 2015, NACC 2016-A-9)
PS 5.4	Tepui Nightjar	Systellura roraimae	Band-winged Nightjar	S. longirostris	Cleere 2010, SACC 677B DECLINED
PS 5.4	Rufous-naped Nightjar	Systellura ruficervix	Band-winged Nightjar	S. longirostris	Cleere 2010, SACC 677B DECLINED
AS 6.3	Cyprus Scops Owl	Otus cyprius	Eurasian Scops Owl	O. scops	Flint et al. 2015
AS 6.3	Lesser Violetear	Colibri cyanotus	Mexican [Green] Violetear	C. thalassinus	Remsen et al. 2015, NACC 2016-C-10
AS 6.3	Red-backed Flameback	Dinopium psarodes	Black-rumped Flameback	D. benghalense	HBW Alive, Fernando et al. 2016; Hybrid zone analysis indicates essential reproductive isolation.
SSP 6.3	Talaud Pitta	Erythropitta inspeculata	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013 Collar et al. 2015; H&M4 ssp group 1. Stet ssp of erythrogaster
SSP 6.3	Sulu Pitta	Erythropitta yairocho	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013. Stet ssp of erythrogaster
AS 6.3	Sula Pitta	Erythropitta dohertyi	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013, Collar et al. 2013; H&M4 ssp group 2.
AS 6.3	Siao Pitta	Erythropitta pallidiceps	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013, Collar et al. 2013; H&M4 ssp group 2.
AS 6.3	Sangihe Pitta	Erythropitta caeruleitorques	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013, Collar et al. 2013; H&M4 ssp group 2.
AS 6.3	Sulawesi Pitta	Erythropitta celebensis	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013, Collar et al. 2013; H&M4 ssp group 2.
AS 6.3	South Moluccan Pitta	Erythropitta rubrinucha	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013, Collar et al. 2015. Includes piroensis. H&M4 ssp group #4.
SSP 6.3	Seram Pitta	Erythropitta piroensis	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013. Ssp of South Moluccan Pitta
AS 6.3	Louisiade Pitta	Erythropitta meeki	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013, Collar et al. 2015. H&M4 ssp group #8
AS 6.3	North Mollucan Pitta	Erythropitta rufiventris	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013; Collar et al. 2015. Includes cyanonota, bernsteini, [obiensis, inornata]. H&M4 ssp group #3.
AS 6.3	Bismarck Pitta	Erythropitta novaehibernicae	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013; includes extima, splendida, gazellae. H&M4 ssp group #7.
SSP 6.3	New Britain Pitta	Erythropitta gazellae	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013. H&M4 ssp group #7. Ssp of Bismarck Pitta.
SSP 6.3	Tabar Pitta	Erythropitta splendida	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013. H&M4 subspecies group #7. Ssp of Bismarck Pitta.
AS 6.3	Papuan Pitta	Erythropitta macklotii	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013, Collar et al. 2015, Beehler & Pratt 2016). Includes habenichti, finschii, loriae/"oblita", digglesi,[aruensis, kuehni, strenua, yorki]. H&M4 ssp group #5-6
SSP 6.3	Habenicht's Pitta	Erythropitta habenichti	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013, Collar et al 2015. Ssp of Papuan Pitta. H&M4 ssp group #6;
SSP 6.3	D'Entrecasteaux Pitta	Erythropitta finschii	Philippine [Red-bellied] Pitta	E. erythrogaster	Irestedt et al. 2013. Collar et al 2015. Ssp of Papuan Pitta. H&M4 ssp group #7,
SSP 6.3	Sao Paulo Antwren	Stymphalornis [Formicivora] paludicola	Parana [Marsh] Antwren	S. acutirostris	Buzzetti et al. 2013; SACC 693 3/5; subspecies for now
AS 6.3	Ayacucho Thistletail	Asthenes ayacuchensis	Vilcabamba Thistletail	A. vilcabambae	Hosner et al. 2015; SACC 697:7/0
AS 6.3	Aceh Bulbul	Pycnonotus snouckaerti	Orange-spotted Bulbul	P. bimaculatus	Eaton & Collar 2015
AS 6.3	Isthmian Wren	Cantorchilus elutus	Cabanis's [Plain] Wren	C. modestus	Saucier et al. 2015, NACC 2016-C-14
AS 6.3	Canebrake Wren	Cantorchilus zeledoni	Cabanis's [Plain] Wren	C. modestus	Stiles et al. 1989, Ridgely & Gwynne 1989, AOU 1998, Saucier et al. 2015, NACC 2016-C-14
AS 6.3	Santa Marta Wood Wren	Henicorhina anachoreta	Grey-breasted Wood Wren	H. leucophrys	Caro et al. 2013, SACC 700 7/0; English name provisional
NEW 6.3	Himalayan Thrush	Zoothera salimalii			Alström et al. 2016; ENG Forest Thrush (Turdus lherminieri)
AS 6.3	Sichuan Thrush	Zoothera griseiceps	Alpine [Plain-backed] Thrush	Z. mollissima	Alström et al. 2016; ENG Forest Thrush (Turdus lherminieri)
SSP 6.3	Grayson's Thrush	Turdus graysoni	Rufous-backed Thrush	T. rufopalliatus	Montaño-Rendón et al. 2015. Vocals? Stet subspecies status for now
SSP 6.3	Campina Thrush	Turdus arthuri	Black-billed Thrush	T. ignobilis	Cerqueira et al. 2016; stet PS SSP pending resolution of (unsampled) ssp ignobilis and goodfellowi.SACC?
SSP 6.3	Amazonian Thrush	Turdus debilis	Black-billed Thrush	T. ignobilis	Cerqueira et al. 2016; stet PS SSP as above. SACC?
SSP 6.3	Lilian's Meadowlark	Sturnella lilianae	Eastern Meadowlark	S. magna	Includes auropectoralis and saundersi; NACC 2016-C-2 declined.
AS 6.3	Gran Canaria Blue Chaffinch	Fringilla polatzeki	[Tenerife] Blue Chaffinch	F. teydea	Sangster et al. 2015
AS 6.2	Sultan's Cuckoo-Dove	Macropygia doreya	Amboyna [Slender-billed] Cuckoo-Dove	M. amboienensis	Ng et al. 2016. Incl albicapilla, albiceps, atrata, sanghirensis, sedecima, balim. English name provisional
AS 6.2	Enggano Cuckoo-Dove	Macropygia cinnamomea	Ruddy Cuckoo-Dove	M. emiliana	Ng et al. 2016. Monotypic
AS 6.2	Barusan Cuckoo-Dove	Macropygia modiglianii	Ruddy Cuckoo-Dove	M. emiliana	Ng et al. 2016. Incl elassa, hypopercna
AS 6.2	Tanimbar Cuckoo-Dove	Macropygia timorlaoensis	Timor [Bar-necked] Cuckoo-Dove	M. magna	Ng et al. 2016. Monotypic
AS 6.2	Flores Sea Cuckoo-Dove	Macropygia macassariensis	Timor [Bar-necked] Cuckoo-Dove	M. magna	Ng et al. 2016. Incl longa
AS 6.2	Sula Cuckoo-Dove	Turacoena sulaensis	White-faced [Cuckoo-] Dove	T. manadensis	Ng & Rheindt 2016
AS 6.2	Purple-capped Fruit Dove	Ptilinopus ponapensis	Crimson-crowned Fruit Dove	P. porphyraceus	Cibois et al. 2014, Hayes et al. 2016
AS 6.2	Kosrae Fruit Dove	Ptilinopus hernsheimi	Crimson-crowned Fruit Dove	P. porphyraceus	Hayes et al. 2016
AS 6.2	Turquoise-throated Barbet	Psilopogon chersonesus	Blue-throated Barbet	P. asiaticus	Sister to P. oorti, den Tex and Leonard 2013, Clements 6.9, HBW Alive
AS 6.2	Necklaced Barbet	Psilopogon auricularis	Golden-throated Barbet	P. franklinii	den Tex and Leonard 2013, HBW Alive
AS 6.2	Coopmans's Elaenia	Elaenia brachyptera	Lesser Elaenia	E. chiriquensis	Rheindt et al 2015; SACC 686
AS 6.2	Tan-capped Catbird	Ailuroedus geislerorum	White-eared Catbird	A. buccoides	Irestedt et al. 2015; includes molestus. English names?
AS 6.2	Ochre-breasted Catbird	Ailuroedus stonii	White-eared Catbird	A. buccoides	Irestedt et al. 2015; includes cinnamomeus. English names?
AS 6.2	Spotted Catbird	Ailuroedus maculosus	Black-eared [Spotted] Catbird	A. melanotis	Irestedt et al. 2015
AS 6.2	Black-capped Catbird	Ailuroedus melanocephalus	Black-eared [Spotted] Catbird	A. melanotis	Irestedt et al. 2015
AS 6.2	Huon Catbird	Ailuroedus astigmaticus	Black-eared [Spotted] Catbird	A. melanotis	Irestedt et al. 2015
AS 6.2	Arfak Catbird	Ailuroedus arfakianus	Black-eared [Spotted] Catbird	A. melanotis	Irestedt et al. 2015; includes misoliensis.
AS 6.2	Northern Catbird	Ailuroedus jobiensis	Black-eared [Spotted] Catbird	A. melanotis	Irestedt et al. 2015; includes guttaticollis.
AS 6.2	Temotu Whistler	Pachycephala vanikorensis	Fiji Whistler	P. vitiensis	Includes ornata and utupae, as well as vanikorensis [from Melanesian Whistler Pachycephala chlorura](Andersen et al. 2014, Jønsson et al. 2014). Temotu is the local name of the [Santa Cruz] islands and the current and official name of that province in the Solomon Islands
AS 6.2	Grey-brown White-eye	Zosterops ponapensis	Kosrae [Grey-brown] White-eye	Z. cinereus	Hayes et al. 2016; English name Grey-brown White-eye appropriate to and established for ponapensis. Rename Z. cinereus 'Kosrae White-eye' (D. Pratt)
AS 6.2	Dark-eyed White-eye	Zosterops tetiparius	Solomons White-eye	Z. kulambangrae	Includes paradoxus (Moyle et al. 2009, H&M4, but also see H&M4: 644, Mees 1955 re use of rendovae)
AS 6.2	Forest White-eye	Zosterops stenocricotus	African Yellow White-eye	Z. senegalensis	Vocally distinct sister to (Speirops) brunneus on Bioko Is; not a member of the senegalensis cryptic species complex (Fry et al. 2000, Cox 2013, Cox et al. 2014). English name ok?
SSP 6.2	Taiwan Thrush	Turdus niveiceps	Island Thrush	T. poliocephalus	Nylander et al. 2008, H&M4; stet ssp status for now
SSP 6.2	Yunnan Parrotbill	Sinosuthora ricketti	Brown-winged Parrotbill	S. brunnea	Deignan 1964, Robson 2007, Penhallurick & Robson 2009, Yeung et al. 2011. STET subspecies pending further research
SSP+ 6.2	Grass Wren	Cistothorus elegans	Grass Wren	C. platensis	Robbins and Nyári 2014. Includes tinnulus, potosinus, jalapensis, warneri, russelli, graberi, and lucidus.
SSP+ 6.2	Austral Wren	Cistothorus hornensis	Grass Wren	C. platensis	Robbins and Nyári 2014. Includes falklandicus
SSP+ 6.2	Tucuman Wren	Cistothorus tucumanus	Grass Wren	C. platensis	Robbins and Nyári 2014. Includes boliviae
SSP+ 6.2	Puna Wren	Cistothorus minimus	Grass Wren	C. platensis	Robbins and Nyári 2014.
SSP+ 6.2	Junin Wren	Cistothorus graminicola	Grass Wren	C. platensis	Robbins and Nyári 2014.
SSP+ 6.2	Paramo Wren	Cistothorus aequatorialis	Grass Wren	C. platensis	Robbins and Nyári 2014. Includes tamae, tolimae
SSP+ 6.2	Venezuelan Wren	Cistothorus alticola	Grass Wren	C. platensis	Robbins and Nyári 2014.
NEW 6.2	Ibera Seedeater	Sporophila iberaensis			Di Giacomo & Kopuchian 2016; SACC proposal badly needed. Appropriate scientific name remains unsettled (SACC Thraupidae Footnote 116).
AS 6.1	Tschudi's Nightjar	Systellura decussata	Band-winged Nightjar	S. longirostris	Cleere 2010, SACC 677A 10/0; English name=Desert Nightjar? Genus?
NEW 6.1	Western Striolated Puffbird	Nystalus obamai	Eastern Striolated Puffbird	N. striolatus	Whitney et al. 2013e, SACC 617, 679, 701.
SSP 6.1	Pacific Fulmar	Fulmarus rodgersii	Northern Fulmar	F. glacialis	Stet subspecies; see Kerr & Dove 2013 for PS status of F. rodgersii
SSP 6.1	Northern Silvery Grebe	Podiceps juninensis	[Southern] Silvery Grebe	P. occipitalis	Stet subspecies pending better contact zone info (Fjeldså & Krabbe 1990, Jaramillo 2003, Del Hoyo & Collar 2014, Ogawa et al. 2015).
SSP 6.1	Eastern Striolated Puffbird	Nystalus torridus	[Natterer's] Striolated Puffbird	N. striolatus	SACC 617 declined; stet as subspecies of N. striolatus pending completion of SACC 679 discussion
SSP 6.1	Mallee Whipbird	Psophodes leucogaster	Western Whipbird	P. nigrogularis	Schodde & Mason 1999, Christidis & Boles 2008, Toon et al. 2013; await full study
SSP 6.1	Western Subalpine Warbler	Sylvia inornata	[Eastern] Subalpine Warbler	P. cantillans	Svensson 2013ab; includes new ssp iberiae. Await revision of species complex.
SSP 6.1	Santa Marta Wood Wren	Henicorhina anachoreta	Grey-breasted Wood Wren	H. leucophrys	Stet subspecies status pending review of species complex. See Caro et al. 2013)
AS 6.1	Sedge Wren	Cistothorus stellaris	Grass [Sedge] Wren	C. platensis	Robbins and Nyári 2014; Middle and South American members of this species complex await revision.
SSP 6.1	'Okinawa Flycatcher'	Ficedula owstoni	Narcissus Flycatcher	F. narcissina	Dong et al. 2015. English name under discussion. Await data on additional populations
AS 6.1	Bundok Flycatcher	Fidecula luzoniensis	Snowy-browed Flycatcher	F. hyperythra	Philippine populations of Snowy-browed Flycatcher are members of a different species clade (Moyle et al. 2015, Clements et al. 2015).
SSP 6.1	Visayan Shama	Copsychus superciliarus	White-browed Shama	C. luzoniensis	Lim et al. 2010, Collar 2011b, not H&M4 nor HBW. Stet ssp
AS 6.1	Merida Brush Finch	Atlapetes meridae	Moustached Brush Finch	A. albofrenatus	Donegan et al. 2014
SSP 6.1	Cayman Bullfinch	Melopyrrha taylori	Cuban Bullfinch	M. nigra	Bradley 2000, H&M4, Garrido et al. 2014; NACC 2016-A-5.

IOC World Bird List

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