- Acrocephalus arundinaceus
- Acrocephalus astrolabii
- Acrocephalus atyphus
- Acrocephalus australis
- Acrocephalus baeticatus
- Acrocephalus baeticatus avicenniae
- Acrocephalus bistrigiceps
- Acrocephalus brevipennis
- Acrocephalus caffer
- Acrocephalus caffer longirostris
- Acrocephalus concinens
- Acrocephalus dumetorum
- Acrocephalus familiaris
- Acrocephalus gracilirostris
- Acrocephalus griseldis
- Acrocephalus hiwae
- Acrocephalus kerearako
- Acrocephalus kingi
- Acrocephalus longirostris
- Acrocephalus luscinius
- Acrocephalus melanopogon
- Acrocephalus mendanae
- Acrocephalus musae
- Acrocephalus newtoni
- Acrocephalus nijoi
- Acrocephalus orientalis
- Acrocephalus orinus
- Acrocephalus paludicola
- Acrocephalus palustris
- Acrocephalus percernis
- Acrocephalus rehsei
- Acrocephalus rimatarae
- Acrocephalus rimitarae
- Acrocephalus rodericanus
- Acrocephalus rufescens
- Acrocephalus schoenobaenus
- Acrocephalus scirpaceus
- Acrocephalus scirpaceus fuscus
- Acrocephalus sechellensis
- Acrocephalus sorghophilus
- Acrocephalus stentoreus
- Acrocephalus syrinx
- Acrocephalus taiti
- Acrocephalus tangorum
- Acrocephalus vaughani
- Acrocephalus yamashinae
- Acropternis
- Acropternis orthonyx
- Acryllium
- Acryllium vulturinum
- Actenoides
- Actenoides bougainvillei
- Actenoides concretus
- Actenoides concretus borneanus
- Actenoides excelsus
- Actenoides hombroni
- Actenoides lindsayi
- Actenoides monachus
- Actenoides monachus capucinus
- Actenoides princeps
- Actinodura
- Actinodura cyanouroptera
- Actinodura egertoni
- Actinodura morrisoniana
- Actinodura nipalensis
- Actinodura ramsayi
- Actinodura sodangorum
- Actinodura souliei
- Actinodura strigula
- Actinodura waldeni
- Actitis
- Actitis hypoleucos
- Actitis macularia
- Actitis macularius
- Actophilornis
- Actophilornis africana
- Actophilornis africanus
- Actophilornis albinucha
- Adalbert's Eagle
- Adam's Snowfinch
- Adamawa Turtle-Dove
- Adamawa Turtle Dove
- Adelaide's Warbler
- Adelaide Rosella
- Adelbert Bowerbird
- Adelbert Regent Bowerbird
- Adelie Penguin
- Adelomyia
- Adelomyia melanogenys
- Adjutant
- Adjutants
- Admirable Hummingbird
- Admiralty Islands
- Admiralty Islands Cicadabird
- Admiralty Islands Masked-Owl
- Admiralty Islands Masked Owl
- Adolphina's Myzomela
- Adur Estuary
- Adur Estuary RSPB
- Adur Estuary RSPB (England)
- Adur Estuary RSPB Reserve
- Aechmophorus
- Aechmophorus clarkii
- Aechmophorus occidentalis
- Aechmorhynchus
- Aechmorhynchus cancellatus
- Aechmorhynchus parvirostris
- Aegithalidae
- Aegithalos
- Aegithalos annamensis
- Aegithalos bonvaloti
- Aegithalos caudatus
- Aegithalos caudatus caudatus
- Aegithalos caudatus trivirgatus
- Aegithalos concinnus
- Aegithalos concinnus concinnus
- Aegithalos fuliginosus
- Aegithalos glaucogularis
- Aegithalos iouschistos
- Aegithalos iouschistos sharpei
- Aegithalos leucogenys
- Aegithalos niveogularis
- Aegithalos sharpei
- Aegithina
- Aegithina lafresnayei
- Aegithina nigrolutea
- Aegithina tiphia
- Aegithina viridissima
- Aegithinidae
- Aegolius
- Aegolius acadicus
- Aegolius funereus
- Aegolius harrisii
- Aegolius ridgwayi
- Aegotheles
- Aegotheles affinis
- Aegotheles albertisi
- Aegotheles archboldi
- Aegotheles bennettii
- Aegotheles crinifrons
- Aegotheles cristatus
- Aegotheles insignis
- Aegotheles savesi
- Aegotheles tatei
- Aegotheles wallacii
- Aegothelidae
- Aegypius
- Aegypius monachus
- Aegypius occipitalis
- Aenigmatolimnas
- Aenigmatolimnas marginalis
- Aepypodius
- Aepypodius arfakianus
- Aepypodius bruijnii
- Aerodramus
- Aerodramus amelis
- Aerodramus bartschi
- Aerodramus brevirostris
- Aerodramus ceramensis
- Aerodramus elaphrus
- Aerodramus francicus
- Aerodramus fuciphagus
- Aerodramus germani
- Aerodramus germanus
- Aerodramus hirundinaceus
- Aerodramus infuscatus
- Aerodramus inquietus
- Aerodramus leucophaeus
- Aerodramus maximus
- Aerodramus mearnsi
- Aerodramus nuditarsus
- Aerodramus ocistus
- Aerodramus orientalis
- Aerodramus palawanensis
- Aerodramus papuensis
- Aerodramus pelewensis
- Aerodramus rogersi
- Aerodramus salanganus
- Aerodramus sawtelli
- Aerodramus sororum
- Aerodramus spodiopygius
- Aerodramus spodiopygius leucopygius
- Aerodramus terraereginus
- Aerodramus unicolor
- Aerodramus vanikorensis
- Aerodramus vulcanorum
- Aerodramus whiteheadi
- Aeronautes
- Aeronautes andecolus
- Aeronautes montivagus
- Aeronautes saxatalis
- Aeshna cyanea
- Aethia
- Aethia cristatella
- Aethia psittacula
- Aethia pusilla
- Aethia pygmaea
- Aethopyga
- Aethopyga bella
- Aethopyga boltoni
- Aethopyga christinae
- Aethopyga christinae latouchii
- Aethopyga decorosa
- Aethopyga duyvenbodei
- Aethopyga eximia
- Aethopyga flagrans
- Aethopyga gouldiae
- Aethopyga gouldiae annamensis
- Aethopyga gouldiae gouldiae
- Aethopyga guimarasensis
- Aethopyga ignicauda
- Aethopyga jefferyi
- Aethopyga linaraborae
- Aethopyga magnifica
- Aethopyga mystacalis
- Aethopyga nipalensis
- Aethopyga primigenia
- Aethopyga pulcherrima
- Aethopyga saturata
- Aethopyga shelleyi
- Aethopyga siparaja
- Aethopyga siparaja magnifica
- Aethopyga siparaja siparaja
- Aethopyga temminckii
- Aethopyga tibolii
- Aethopyga vigorsii
- Afep Pigeon
- Afghan Babbler
- Afghan Ground-Sparrow
- Afghan Ground Sparrow
- Afghan Scrub Sparrow
- Afghan Snowfinch
- Afghan Wheatear
- Afghanistan
- Afrak Flowerpecker
- Africa
- African Bare-eyed Thrush
- African Barred Owlet
- African Bay-Owl
- African Bay Owl
- African Baza
- African Black-headed Oriole
- African Black Coucal
- African Black Crake
- African Black Duck
- African Black Oystercatcher
- African Black Swift
- African Blue-Flycatcher
- African Blue Flycatcher
- African Blue Tit
- African Broad-billed Roller
- African Broadbill
- African Bush-Warbler
- African Bush Warbler
- African Chaffinch
- African Citril
- African Collared-Dove
- African Collared Dove
- African Comb Duck
- African Crake
- African Crested-Flycatcher
- African Crested Flycatcher
- African Crimson-winged Finch
- African Crow
- African Crowned Eagle
- African Cuckoo
- African Cuckoo-Hawk
- African Cuckoo Hawk
- African Darter
- African Desert Sparrow
- African Desert Warbler
- African Drongo
- African Dusky Flycatcher
- African Dusky Nightjar
- African Dwarf Kingfisher
- African Emerald Cuckoo
- African Finfoot
- African Firefinch
- African Fish-Eagle
- African Fish Eagle
- African Forest-Flycatcher
- African Forest Flycatcher
- African Golden-Weaver
- African Golden-breasted Bunting
- African Golden Oriole
- African Golden Weaver
- African Goshawk
- African Grass-Owl
- African Grass Owl
- African Gray Flycatcher
- African Gray Hornbill
- African Gray Parrot
- African Gray Woodpecker
- African Green-Pigeon
- African Green Broadbill
- African Green Pigeon
- African Green Tinkerbird
- African Grey Flycatcher
- African Grey Hornbill
- African Grey Parrot
- African Grey Woodpecker
- African Harrier-Hawk
- African Harrier Hawk
- African Hawk-Eagle
- African Hawk Eagle
- African Hill Babbler
- African Hobby
- African Hoopoe
- African Jacana
- African Little Sparrowhawk
- African Long-eared Owl
- African Longtailed Shrike
- African Mangrove Kingfisher
- African Marsh-Harrier
- African Marsh Harrier
- African Marsh Owl
- African Masked Weaver
- African Mountain Thrush
- African Mourning Dove
- African Moustached Warbler
- African Olive-Pigeon
- African Olive Pigeon
- African Open-bill
- African Open-bill Stork
- African Open-billed Stork
- African Openbill
- African Openbill Stork
- African Orange-bellied Parrot
- African Oystercatcher
- African Palm-Swift
- African Palm Swift
- African Paradise-Flycatcher
- African Paradise Flycatcher
- African Penduline-Tit
- African Penduline Tit
- African Penguin
- African Piculet
- African Pied Crow
- African Pied Hornbill
- African Pied Starling
- African Pied Wagtail
- African Pigeon
- African Pipit
- African Pitta
- African Purple Swamphen


