- Abroscopus albogularis (Rufous-faced Warbler)
- Abroscopus albogularis albogularis
- Abroscopus albogularis fulvifacies
- Abroscopus schisticeps (Black-faced Warbler)
- Abroscopus schisticeps ripponi
- Abroscopus schisticeps schisticeps
- Abroscopus superciliaris (Yellow-bellied Warbler)
- Abroscopus superciliaris flaviventris
- Abroscopus superciliaris papilio
- Abroscopus superciliaris superciliaris
- Acanthagenys rufogularis (Spiny-cheeked Honeyeater)
- Acanthidops bairdii (Peg-billed Finch)
- Acanthisitta chloris (Rifleman)
- Acanthisitta chloris chloris (citrina)
- Acanthisitta chloris granti
- Acanthiza apicalis (Inland Thornbill)
- Acanthiza apicalis albiventris
- Acanthiza apicalis apicalis
- Acanthiza apicalis cinerascens
- Acanthiza apicalis whitlocki
- Acanthiza chrysorrhoa (Yellow-rumped Thornbill)
- Acanthiza chrysorrhoa chrysorrhoa
- Acanthiza ewingii (Tasmanian Thornbill)
- Acanthiza ewingii ewingii
- Acanthiza ewingii rufifrons
- Acanthiza inornata (Western Thornbill)
- Acanthiza iredalei (Slender-billed Thornbill)
- Acanthiza iredalei hedleyi
- Acanthiza iredalei iredalei
- Acanthiza iredalei rosinae
- Acanthiza katherina (Mountain Thornbill)
- Acanthiza lineata (Striated Thornbill)
- Acanthiza lineata alberti
- Acanthiza lineata lineata
- Acanthiza lineata whitei
- Acanthiza murina (Papuan Thornbill)
- Acanthiza nana (Yellow Thornbill)
- Acanthiza nana flava
- Acanthiza nana modesta
- Acanthiza nana nana
- Acanthiza pusilla (Brown Thornbill)
- Acanthiza pusilla archibaldi
- Acanthiza pusilla diemenensis
- Acanthiza pusilla pusilla
- Acanthiza reguloides (Buff-rumped Thornbill)
- Acanthiza reguloides australis
- Acanthiza reguloides reguloides
- Acanthiza reguloides squamata
- Acanthiza robustirostris (Slaty-backed Thornbill)
- Acanthiza uropygialis (Chestnut-rumped Thornbill)
- Acanthorhynchus superciliosus (Western Spinebill)
- Acanthorhynchus tenuirostris (Eastern Spinebill)
- Acanthorhynchus tenuirostris dubius
- Acanthorhynchus tenuirostris tenuirostris
- Acanthornis magna (Scrubtit)
- Acanthornis magna magna
- Acridotheres albocinctus (Collared Myna)
- Acridotheres burmannicus (Vinous-breasted Starling)
- Acridotheres burmannicus burmannicus
- Acridotheres burmannicus leucocephalus
- Acridotheres cinereus (Pale-bellied Myna)
- Acridotheres cristatellus (Crested Myna)
- Acridotheres cristatellus brevipennis
- Acridotheres cristatellus cristatellus
- Acridotheres cristatellus formosanus
- Acridotheres fuscus (Jungle Myna)
- Acridotheres fuscus fuscus
- Acridotheres fuscus mahrattensis
- Acridotheres fuscus torquatus
- Acridotheres ginginianus (Bank Myna)
- Acridotheres grandis (White-vented Myna)
- Acridotheres javanicus (Javan Myna)
- Acridotheres melanopterus (Black-winged Starling)
- Acridotheres tristis (Common Myna)
- Acridotheres tristis melanosternus
- Acridotheres tristis tristis
- Acrobatornis fonsecai (Pink-legged Graveteiro)
- Acrocephalus aedon (Thick-billed Warbler)
- Acrocephalus aedon aedon
- Acrocephalus aedon stegmanni
- Acrocephalus aequinoctialis (Christmas Island Warbler)
- Acrocephalus aequinoctialis aequinoctialis
- Acrocephalus agricola (Paddyfield Warbler)
- Acrocephalus arundinaceus (Great Reed-Warbler)
- Acrocephalus arundinaceus arundinaceus
- Acrocephalus arundinaceus zarudnyi
- Acrocephalus atyphus (Tuamotu Reed-Warbler)
- Acrocephalus atyphus atyphus
- Acrocephalus atyphus palmarum
- Acrocephalus australis (Australian Reed-Warbler)
- Acrocephalus australis australis
- Acrocephalus australis gouldi
- Acrocephalus australis toxopei
- Acrocephalus baeticatus (African Reed-Warbler)
- Acrocephalus baeticatus avicenniae
- Acrocephalus baeticatus baeticatus
- Acrocephalus baeticatus hallae
- Acrocephalus baeticatus suahelicus
- Acrocephalus bistrigiceps (Black-browed Reed-Warbler)
- Acrocephalus brevipennis (Cape Verde Swamp-Warbler)
- Acrocephalus caffer (Tahiti Reed-Warbler)
- Acrocephalus caffer caffer
- Acrocephalus caffer garretti
- Acrocephalus caffer longirostris
- Acrocephalus concinens (Blunt-winged Warbler)
- Acrocephalus concinens concinens
- Acrocephalus dumetorum (Blyth’s Reed-Warbler)
- Acrocephalus familiaris (Millerbird)
- Acrocephalus familiaris familiaris
- Acrocephalus familiaris kingi
- Acrocephalus gracilirostris (Lesser Swamp-Warbler)
- Acrocephalus gracilirostris jacksoni
- Acrocephalus gracilirostris leptorhynchus
- Acrocephalus gracilirostris neglectus
- Acrocephalus gracilirostris parvus
- Acrocephalus griseldis (Basra Reed-Warbler)
- Acrocephalus kerearako (Cook Islands Reed-Warbler)
- Acrocephalus kerearako kerearako
- Acrocephalus luscinius (Nightingale Reed-Warbler)
- Acrocephalus luscinius luscinius
- Acrocephalus melanopogon (Moustached Warbler)
- Acrocephalus melanopogon albiventris
- Acrocephalus melanopogon melanopogon
- Acrocephalus melanopogon mimicus
- Acrocephalus mendanae (Marquesan Reed-Warbler)
- Acrocephalus mendanae idae
- Acrocephalus mendanae mendanae
- Acrocephalus mendanae percernis
- Acrocephalus newtoni (Madagascar Swamp-Warbler)
- Acrocephalus orientalis (Oriental Reed-Warbler)
- Acrocephalus orinus (Large-billed Reed-Warbler)
- Acrocephalus paludicola (Aquatic Warbler)
- Acrocephalus palustris (Marsh Warbler)
- Acrocephalus rehsei (Nauru Reed-Warbler)
- Acrocephalus rimitarae (Rimitara Reed-Warbler)
- Acrocephalus rodericanus (Rodrigues Brush-Warbler)
- Acrocephalus rufescens (Greater Swamp-Warbler)
- Acrocephalus rufescens rufescens
- Acrocephalus rufescens senegalensis
- Acrocephalus schoenobaenus (Sedge Warbler)
- Acrocephalus scirpaceus (Eurasian Reed-Warbler)
- Acrocephalus scirpaceus fuscus
- Acrocephalus scirpaceus scirpaceus
- Acrocephalus sechellensis (Seychelles Brush-Warbler)
- Acrocephalus sorghophilus (Streaked Reed-Warbler)
- Acrocephalus stentoreus (Clamorous Reed-Warbler)
- Acrocephalus stentoreus brunnescens
- Acrocephalus stentoreus celebensis
- Acrocephalus stentoreus harterti
- Acrocephalus stentoreus meridionalis
- Acrocephalus stentoreus stentoreus
- Acrocephalus stentoreus sumbae
- Acrocephalus syrinx (Caroline Reed-Warbler)
- Acrocephalus taiti (Henderson Island Reed-Warbler)
- Acrocephalus tangorum (Manchurian Reed-Warbler)
- Acrocephalus vaughani (Pitcairn Reed-Warbler)
- Acropternis orthonyx (Ocellated Tapaculo)
- Acropternis orthonyx infuscatus
- Acropternis orthonyx orthonyx
- Actinodura egertoni (Rusty-fronted Barwing)
- Actinodura egertoni egertoni
- Actinodura egertoni khasiana
- Actinodura egertoni lewisi
- Actinodura egertoni ripponi
- Actinodura morrisoniana (Taiwan Barwing)
- Actinodura nipalensis (Hoary-throated Barwing)
- Actinodura nipalensis nipalensis
- Actinodura ramsayi (Spectacled Barwing)
- Actinodura ramsayi ramsayi
- Actinodura ramsayi yunnanensis
- Actinodura sodangorum (Black-crowned Barwing)
- Actinodura souliei (Streaked Barwing)
- Actinodura souliei souliei
- Actinodura waldeni (Streak-throated Barwing)
- Actinodura waldeni waldeni
- Aegithalos caudatus (Long-tailed Tit)
- Aegithalos caudatus alpinus
- Aegithalos caudatus caudatus
- Aegithalos caudatus europaeus
- Aegithalos caudatus glaucogularis
- Aegithalos caudatus irbii
- Aegithalos caudatus italiae
- Aegithalos caudatus kiusiuensis
- Aegithalos caudatus macedonicus
- Aegithalos caudatus magnus
- Aegithalos caudatus major
- Aegithalos caudatus rosaceus
- Aegithalos caudatus siculus
- Aegithalos caudatus taiti
- Aegithalos caudatus tauricus
- Aegithalos caudatus tephronotus
- Aegithalos caudatus trivirgatus
- Aegithalos caudatus vinaceus
- Aegithalos concinnus (Black-throated Tit)
- Aegithalos concinnus annamensis
- Aegithalos concinnus concinnus
- Aegithalos concinnus iredalei
- Aegithalos concinnus manipurensis
- Aegithalos concinnus pulchellus
- Aegithalos concinnus talifuensis
- Aegithalos fuliginosus (Sooty Tit)
- Aegithalos iouschistos (Black-browed Tit)
- Aegithalos iouschistos bonvaloti
- Aegithalos iouschistos iouschistos
- Aegithalos iouschistos sharpei
- Aegithalos leucogenys (White-cheeked Tit)
- Aegithalos niveogularis (White-throated Tit)
- Aegithina lafresnayei (Great Iora)
- Aegithina lafresnayei innotata
- Aegithina lafresnayei lafresnayei
- Aegithina lafresnayei xanthotis
- Aegithina nigrolutea (White-tailed Iora)
- Aegithina tiphia (Common Iora)
- Aegithina tiphia aequanimis
- Aegithina tiphia cambodiana
- Aegithina tiphia deignani
- Aegithina tiphia humei
- Aegithina tiphia multicolor
- Aegithina tiphia philipi
- Aegithina tiphia scapularis
- Aegithina tiphia septentrionalis
- Aegithina tiphia tiphia
- Aegithina tiphia viridis
- Aegithina viridissima (Green Iora)
- Aegithina viridissima viridissima
- Aethopyga bella (Handsome Sunbird)
- Aethopyga bella bella
- Aethopyga bella bonita
- Aethopyga bella flavipectus
- Aethopyga bella minuta
- Aethopyga boltoni (Mount Apo Sunbird)
- Aethopyga boltoni boltoni
- Aethopyga boltoni malindangensis
- Aethopyga christinae (Fork-tailed Sunbird)
- Aethopyga christinae christinae
- Aethopyga christinae latouchii
- Aethopyga duyvenbodei (Elegant Sunbird)
- Aethopyga eximia (White-flanked Sunbird)
- Aethopyga flagrans (Flaming Sunbird)
- Aethopyga flagrans flagrans
- Aethopyga gouldiae (Gould’s Sunbird)
- Aethopyga gouldiae annamensis
- Aethopyga gouldiae dabryii
- Aethopyga gouldiae gouldiae
- Aethopyga ignicauda (Fire-tailed Sunbird)
- Aethopyga ignicauda flavescens
- Aethopyga linaraborae (Lina’s Sunbird)
- Aethopyga mystacalis (Scarlet Sunbird)
- Aethopyga nipalensis (Green-tailed Sunbird)
- Aethopyga nipalensis angkanensis
- Aethopyga nipalensis australis
- Aethopyga nipalensis horsfieldii
- Aethopyga nipalensis koelzi
- Aethopyga nipalensis nipalensis
- Aethopyga nipalensis victoriae
- Aethopyga primigenia (Gray-hooded Sunbird)
- Aethopyga primigenia primigenia
- Aethopyga pulcherrima (Metallic-winged Sunbird)
- Aethopyga pulcherrima jefferyi
- Aethopyga pulcherrima pulcherrima
- Aethopyga saturata (Black-throated Sunbird)
- Aethopyga saturata anomala
- Aethopyga saturata assamensis
- Aethopyga saturata cambodiana
- Aethopyga saturata johnsi
- Aethopyga saturata petersi
- Aethopyga saturata saturata
- Aethopyga shelleyi (Lovely Sunbird)
- Aethopyga siparaja (Eastern Crimson Sunbird)
- Aethopyga siparaja beccarii
- Aethopyga siparaja insularis
- Aethopyga siparaja magnifica
- Aethopyga siparaja nicobarica
- Aethopyga siparaja owstoni
- Aethopyga siparaja seheriae
- Aethopyga siparaja siparaja
- Aethopyga siparaja tonkinensis
- Aethopyga temminckii (Temminck’s Sunbird)
- Aethopyga vigorsii (Western Crimson Sunbird)
- Agelaioides badius (Bay-winged Cowbird)
- Agelaioides badius badius
- Agelaioides badius bolivianus
- Agelaioides badius fringillarius
- Agelaius assimilis (Red-shouldered Blackbird)
- Agelaius assimilis assimilis
- Agelaius assimilis subniger
- Agelaius humeralis (Tawny-shouldered Blackbird)
- Agelaius humeralis humeralis
- Agelaius phoeniceus (Red-winged Blackbird)
- Agelaius phoeniceus [californicusGroup] (Red-winged Blackbird (California Bicolored))
- Agelaius phoeniceus [phoeniceus Group] (Red-winged Blackbird (Red-winged))
- Agelaius phoeniceus aciculatus
- Agelaius phoeniceus arctolegus
- Agelaius phoeniceus brevirostris
- Agelaius phoeniceus bryanti
- Agelaius phoeniceus californicus
- Agelaius phoeniceus caurinus
- Agelaius phoeniceus floridanus
- Agelaius phoeniceus fortis
- Agelaius phoeniceus grinnelli
- Agelaius phoeniceus gubernator (Red-winged Blackbird (Mexican Bicolored))
- Agelaius phoeniceus littoralis
- Agelaius phoeniceus mailliardorum
- Agelaius phoeniceus mearnsi
- Agelaius phoeniceus megapotamus
- Agelaius phoeniceus nelsoni
- Agelaius phoeniceus neutralis
- Agelaius phoeniceus nevadensis
- Agelaius phoeniceus pallidulus
- Agelaius phoeniceus phoeniceus
- Agelaius phoeniceus richmondi
- Agelaius phoeniceus sonoriensis
- Agelaius tricolor (Tricolored Blackbird)
- Agelaius xanthomus (Yellow-shouldered Blackbird)
- Agelaius xanthomus monensis
- Agelaius xanthomus xanthomus
- Agelasticus cyanopus (Unicolored Blackbird)
- Agelasticus cyanopus cyanopus
- Agelasticus thilius (Yellow-winged Blackbird)
- Agelasticus thilius alticola
- Agelasticus thilius thilius
- Agelasticus xanthophthalmus (Pale-eyed Blackbird)
- Agriornis albicauda (White-tailed Shrike-Tyrant)
- Agriornis albicauda albicauda
- Agriornis albicauda andicola
- Agriornis lividus (Great Shrike-Tyrant)
- Agriornis lividus fortis
- Agriornis lividus lividus
- Agriornis micropterus (Gray-bellied Shrike-Tyrant)
- Agriornis micropterus andecola
- Agriornis micropterus micropterus
- Agriornis montanus (Black-billed Shrike-Tyrant)
- Agriornis montanus intermedius
- Agriornis montanus maritimus (leucurus)
- Agriornis montanus montanus
- Agriornis montanus solitarius
- Agriornis murinus (Lesser Shrike-Tyrant)
- Ailuroedus buccoides (White-eared Catbird)
- Ailuroedus buccoides buccoides
- Ailuroedus buccoides cinnamomeus
- Ailuroedus buccoides geislerorum
- Ailuroedus buccoides oorti
- Ailuroedus buccoides stonii
- Ailuroedus crassirostris (Green Catbird)
- Ailuroedus crassirostris crassirostris
- Ailuroedus crassirostris maculosus
- Ailuroedus dentirostris (Tooth-billed Catbird)
- Ailuroedus melanotis (Spotted Catbird)
- Ailuroedus melanotis arfakianus
- Ailuroedus melanotis guttaticollis
- Ailuroedus melanotis jobiensis
- Ailuroedus melanotis maculosus
- Ailuroedus melanotis melanocephalus
- Ailuroedus melanotis melanotis
- Aimophila aestivalis (Bachman’s Sparrow)
- Aimophila aestivalis aestivalis
- Aimophila aestivalis bachmani
- Aimophila aestivalis illinoensis
- Aimophila botterii (Botteri’s Sparrow)
- Aimophila botterii arizonae
- Aimophila botterii botterii
- Aimophila botterii goldmani
- Aimophila botterii mexicana
- Aimophila botterii texana
- Aimophila carpalis (Rufous-winged Sparrow)
- Aimophila carpalis carpalis
- Aimophila cassinii (Cassin’s Sparrow)
- Aimophila humeralis (Black-chested Sparrow)
- Aimophila mystacalis (Bridled Sparrow)
- Aimophila notosticta (Oaxaca Sparrow)
- Aimophila quinquestriata (Five-striped Sparrow)
- Aimophila quinquestriata quinquestriata
- Aimophila quinquestriata septentrionalis
- Aimophila rufescens (Rusty Sparrow)
- Aimophila rufescens discolor
- Aimophila rufescens mcleodii
- Aimophila rufescens pectoralis (gigas)
- Aimophila ruficauda (Stripe-headed Sparrow)
- Aimophila ruficauda acuminata
- Aimophila ruficauda connectens
- Aimophila ruficauda lawrencii
- Aimophila ruficauda ruficauda
- Aimophila ruficeps (Rufous-crowned Sparrow)
- Aimophila ruficeps australis
- Aimophila ruficeps canescens (lambi)
- Aimophila ruficeps fusca
- Aimophila ruficeps obscura
- Aimophila ruficeps ruficeps
- Aimophila ruficeps rupicola
- Aimophila ruficeps sanctorum
- Aimophila ruficeps scottii
- Aimophila ruficeps simulans
- Aimophila ruficeps sororia
- Aimophila stolzmanni (Tumbes Sparrow)
- Aimophila strigiceps (Stripe-capped Sparrow)
- Aimophila strigiceps dabbenei
- Aimophila strigiceps strigiceps
- Aimophila sumichrasti (Cinnamon-tailed Sparrow)
- Alaemon alaudipes (Greater Hoopoe-Lark)
- Alaemon alaudipes alaudipes
- Alaemon alaudipes boavistae
- Alaemon alaudipes desertorum
- Alaemon alaudipes doriae
- Alaemon hamertoni (Lesser Hoopoe-Lark)
- Alaemon hamertoni hamertoni
- Alario alario (Black-headed Canary)
- Alario leucolaemus (Damara Canary)
- Alauda arvensis (Eurasian Skylark)
- Alauda arvensis [arvensis Group] (Sky Lark (European))
- Alauda arvensis [japonica Group] (Sky Lark (Asian))
- Alauda arvensis armenica
- Alauda arvensis arvensis
- Alauda arvensis cantarella
- Alauda arvensis dulcivox
- Alauda arvensis harterti
- Alauda arvensis intermedia
- Alauda arvensis japonica
- Alauda arvensis lonnbergi
- Alauda arvensis pekinensis
- Alauda arvensis scotica
- Alauda arvensis sierrae
- Alauda gulgula (Oriental Skylark)
- Alauda gulgula gulgula (herberti, australis)
- Alauda gulgula inconspicua
- Alauda gulgula inopinata
- Alauda gulgula lhamarum
- Alauda gulgula vernayi
- Alauda gulgula weigoldi
- Alauda razae (Razo Skylark)
- Alcippe brunnea (Dusky Fulvetta)
- Alcippe brunnea brunnea
- Alcippe brunnea intermedia
- Alcippe brunnea mandellii
- Alcippe brunnea olivacea
- Alcippe brunnea superciliaris
- Alcippe brunneicauda (Brown Fulvetta)
- Alcippe brunneicauda brunneicauda
- Alcippe castaneceps (Rufous-winged Fulvetta)
- Alcippe castaneceps castaneceps
- Alcippe castaneceps klossi
- Alcippe castaneceps soror
- Alcippe chrysotis (Golden-breasted Fulvetta)
- Alcippe chrysotis albilineata
- Alcippe chrysotis amoena
- Alcippe chrysotis chrysotis
- Alcippe chrysotis forresti
- Alcippe chrysotis swinhoii
- Alcippe cinerea (Yellow-throated Fulvetta)
- Alcippe cinereiceps (Streak-throated Fulvetta)
- Alcippe cinereiceps cinereiceps
- Alcippe cinereiceps formosana
- Alcippe cinereiceps fucata (berliozi)
- Alcippe cinereiceps guttaticollis
- Alcippe cinereiceps manipurensis
- Alcippe cinereiceps tonkinensis
- Alcippe dubia (Rusty-capped Fulvetta)
- Alcippe dubia dubia
- Alcippe ludlowi (Ludlow’s Fulvetta)
- Alcippe morrisonia (Gray-cheeked Fulvetta)
- Alcippe morrisonia davidi
- Alcippe morrisonia fratercula
- Alcippe morrisonia hueti
- Alcippe morrisonia morrisonia
- Alcippe morrisonia rufescentior
- Alcippe morrisonia schaefferi
- Alcippe morrisonia yunnanensis
- Alcippe nipalensis (Nepal Fulvetta)
- Alcippe nipalensis nipalensis
- Alcippe peracensis (Mountain Fulvetta)
- Alcippe peracensis annamensis
- Alcippe peracensis eremita
- Alcippe peracensis grotei
- Alcippe peracensis peracensis
- Alcippe poioicephala (Brown-cheeked Fulvetta)
- Alcippe poioicephala brucei
- Alcippe poioicephala davisoni
- Alcippe poioicephala fusca
- Alcippe poioicephala phayrei
- Alcippe poioicephala poioicephala
- Alcippe pyrrhoptera (Javan Fulvetta)
- Alcippe ruficapilla (Spectacled Fulvetta)
- Alcippe ruficapilla danisi
- Alcippe ruficapilla ruficapilla
- Alcippe rufogularis (Rufous-throated Fulvetta)
- Alcippe rufogularis collaris
- Alcippe rufogularis kelleyi
- Alcippe rufogularis major
- Alcippe rufogularis rufogularis
- Alcippe rufogularis stevensi
- Alcippe striaticollis (Chinese Fulvetta)
- Alcippe variegaticeps (Gold-fronted Fulvetta)
- Alcippe vinipectus (White-browed Fulvetta)
- Alcippe vinipectus austeni
- Alcippe vinipectus bieti
- Alcippe vinipectus perstriata
- Alcippe vinipectus ripponi
- Alcippe vinipectus vinipectus
- Aleadryas rufinucha (Rufous-naped Whistler)
- Aleadryas rufinucha rufinucha
- Alectrurus risora (Strange-tailed Tyrant)