- 'Apapane
- A Field Guide to the Birds of Japan
- Abert's Towhee
- Abundant
- Acadian Flycatcher
- Acorn Woodpecker
- Adélie Penguin
- Aerie
- African Blue Flycatcher
- African Golden Oriole
- African Hoopoe
- African Penguin
- African Sacred Ibis
- Air Sac
- Albatross
- Alpine Accentor
- Alpine Chough
- Alpine Swift
- Altai Accentor
- Altricial and Precocial birds
- American Avocet
- American Coot
- American Crow
- American Dipper
- American Flamingo
- American Goldfinch
- American Herring Gull
- American Kestrel
- American Pekin Duck
- American Robin
- American White Stork
- American Wigeon
- Andaman Nightjar
- Andaman Treepie
- Andean Condor
- Andean Flamingo
- Anhinga
- Anna's Hummingbird
- Anvil
- Apteribis
- Aquatic Warbler
- Arabian Warbler
- Archbold's Owlet-nightjar
- Arctic Loon
- Arctic Skua
- Arctic Tern
- Asian Brown Flycatcher
- Asian Green Bee-eater
- Asian Koel
- Atlantic Canary
- Atlantic Puffin
- Atlas Flycatcher
- Audouin's Gull
- Auricular
- Australasian Darter
- Australian Bustard
- Australian Logrunner
- Australian Magpie
- Australian Owlet-nightjar
- Australian Pelican
- Australian Raven
- Australian White Ibis
- Australian Zebra Finch
- Azores Bullfinch
- Azure-breasted Pitta
- Azure Tit
- Bahama Mockingbird
- Bald Eagle
- Baltimore Oriole
- Bar-tailed Godwit
- Barn Owl
- Barn Swallow
- Barnacle Goose
- Barred Owl
- Barred Parakeet
- Barred Puffbird
- Bay-breasted Warbler
- Bearded Reedling
- Bearded Vulture
- Bee Hummingbird
- Bell Miner
- Belted Kingfisher
- Bermuda Night Heron
- Bewick's Swan
- Bewick's Wren
- Biddulph's Ground Jay
- Bill
- Bird
- Bird Life Cycle
- Bird Sanctuary
- Bird bath
- Bird box
- Bird feeder
- Bird feet
- Bird of prey
- Bird taxonomy
- Bird topography
- Birds & Blooms
- Birds Wiki
- Birds of Yosemite National Park (1954, 1963) by Cyril A. Stebbins and Robert C. Stebbins (4)
- Birdwatching
- Bishop's ʻŌʻō
- Black-and-orange Flycatcher
- Black-and-white-casqued Hornbill
- Black-and-white Warbler
- Black-bellied Whistling Duck
- Black-browed Albatross
- Black-capped Chickadee
- Black-cheeked Lovebird
- Black-collared Starling
- Black-crowned Night Heron
- Black-footed Albatross
- Black-headed Gull
- Black-headed Jay
- Black-legged Kittiwake
- Black-masked Lovebird
- Black-necked Grebe
- Black-necked Stilt
- Black-necked Swan
- Black-shouldered Kite
- Black-throated Blue Warbler
- Black-throated Magpie-jay
- Black-winged Pratincole
- Black-winged Stilt
- Black Catbird
- Black Grouse
- Black Guillemot
- Black Kite
- Black Noddy
- Black Phoebe
- Black Rail
- Black Redstart
- Black Robin
- Black Stilt
- Black Swan
- Black Vulture
- Blackstart
- Blanford's Rosefinch
- Blue-Footed Booby
- Blue-and-Yellow Macaw
- Blue-capped Ifrit
- Blue-eyed Junco
- Blue-fronted Amazon
- Blue-headed Vireo
- Blue-throated Hillstar
- Blue-throated Macaw
- Blue-throated Roller
- Blue-winged Warbler
- Blue Bunting
- Blue Jay
- Blue Mutation Macaw
- Blue Petrel
- Bluethroat
- Bohemian Waxwing
- Brahminy Kite
- Brambling
- Brazilian Merganser
- Brazilian Teal
- Broad-billed Roller
- Broad-winged Hawk
- Brood
- Brood patch
- Brown-headed Cowbird
- Brown Creeper
- Brown Mesite
- Brown Pelican
- Budgerigar
- Bugun Liocichla
- Buzzard
- Cabot's Tragopan
- Cackling Goose
- Cactus Wren
- California Condor
- California Quail
- Campina Jay
- Canada Goose
- Canada Jay
- Canyon Wren
- Cape Rockjumper
- Capuchinbird
- Carolina Wren
- Carrion Crow
- Cassia Crossbill
- Cassin's Vireo
- Cassowary
- Cattle Egret
- Cedar Waxwing
- Chaffinch (disambiguation)
- Chalk-browed Mockingbird
- Chestnut-backed Chickadee
- Chestnut-colored Woodpecker
- Chestnut-tailed Starling
- Chicken
- Chinese Pond Heron
- Chinstrap Penguin
- Chowchilla
- Chukar Partridge
- Cinnamon Bittern
- Cirl Bunting
- Citron-crested Cockatoo
- Clamorous Reed Warbler
- Clumping
- Clutch
- Coal Tit
- Cob
- Cockatiel
- Collared Flycatcher
- Collared Kingfisher
- Collins Bird Guide
- Colonial
- Columbidae
- Common Blackbird
- Common Buzzard
- Common Chaffinch
- Common Chiffchaff
- Common Crane
- Common Cuckoo
- Common Eider
- Common Firecrest
- Common Guillemot
- Common Gull
- Common House Martin
- Common Kingfisher
- Common Linnet
- Common Loon
- Common Moorhen
- Common Myna
- Common Nightingale
- Common Ostrich
- Common Pheasant
- Common Pochard
- Common Quail
- Common Raven
- Common Redstart
- Common Reed Bunting
- Common Rosefinch
- Common Sandpiper
- Common Shelduck
- Common Snipe
- Common Swift
- Common Teal
- Common Tern
- Common Wood Pigeon
- Common Yellowthroat
- Congo Peafowl
- Cooper's Hawk
- Corvid
- Courtship
- Crested Bellbird
- Crested Treeswift
- Crimson-bellied Woodpecker
- Crosnoornis
- Crown
- Cryptic
- Cuban Trogon
- Cuckoo
- Cyprus Warbler
- Cyprus Wheatear
- Dalmatian Pelican
- Dance of starlings
- Dark-breasted Rosefinch
- Dark-eyed Junco
- Daurian Jackdaw
- Definitions
- Demoiselle Crane
- Diamond Dove
- Dickcissel
- Diuca Finch
- Dodo
- Down
- Downy Woodpecker
- Drakensberg Rockjumper
- Duck
- Dunnock
- Dusky Turtle Dove
- EBird
- Eagle
- Eastern Bluebird
- Eastern Crested Berrypecker
- Eastern Imperial Eagle
- Eastern Kingbird
- Eastern Rosella
- Eastern Screech Owl
- Egyptian Goose
- Egyptian Vulture
- Eider
- Elegant Crested Tinamou
- Emerald Toucanet
- Emperor Goose
- Emperor Penguin
- Emu
- Eurasian Blackcap
- Eurasian Blue Tit
- Eurasian Bullfinch
- Eurasian Collared Dove
- Eurasian Coot
- Eurasian Eagle-owl
- Eurasian Golden Oriole
- Eurasian Hobby
- Eurasian Hoopoe
- Eurasian Jay
- Eurasian Kestrel
- Eurasian Magpie
- Eurasian Nutcracker
- Eurasian Oystercatcher
- Eurasian Scops Owl
- Eurasian Siskin
- Eurasian Skylark
- Eurasian Sparrowhawk
- Eurasian Spoonbill
- Eurasian Tree Sparrow
- Eurasian Whimbrel
- Eurasian Wigeon
- Eurasian Wren
- European Bee-eater
- European Crested Tit
- European Goldfinch
- European Green Woodpecker
- European Greenfinch
- European Herring Gull
- European Honey Buzzard
- European Pied Flycatcher
- European Robin
- European Roller
- European Serin
- European Shag
- European Starling
- European Stonechat
- European Storm Petrel
- European Turtle Dove
- Extinct
- Eye ring
- Falconry
- Fan-tailed Raven
- Fantail
- Feathers
- Feathers 411
- Field Guide to the Birds of North America
- Fieldfare
- Fiery-browed Starling
- Firethroat
- Fischer's Lovebird
- Flame Robin
- Flamecrest
- Flamingo
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