- Canada Goose
- Cardinal Woodpecker
- Carib Grackle
- Carmelite Sunbird
- Carrion Crow
- Caspian Tern
- Cassin's Flycatcher
- Cassin's Hawk-Eagle
- Cetti's Warbler
- Chattering Cisticola
- Chestnut-bellied Seedeater
- Chestnut-bellied Starling
- Cinereous Vulture
- Cinnamon Attila
- Cirl Bunting
- Coal Tit
- Cocoi Heron
- Collared Plover
- Collared Sunbird
- Common Blackbird
- Common Bulbul
- Common Buzzard
- Common Chaffinch
- Common Chiffchaff
- Common Crane
- Common Cuckoo
- Common Firecrest
- Common Goldeneye
- Common Greenshank
- Common Ground Dove
- Common Gull
- Common House Martin
- Common Kestrel
- Common Kingfisher
- Common Linnet
- Common Loon
- Common Moorhen
- Common Nightingale
- Common Ostrich
- Common Pheasant
- Common Pochard
- Common Quail
- Common Redshank
- Common Redstart
- Common Reed Bunting
- Common Reed Warbler
- Common Ringed Plover
- Common Rock Thrush
- Common Sandpiper
- Common Shelduck
- Common Snipe
- Common Starling
- Common Swift
- Common Tern
- Common Waxbill
- Common Whitethroat
- Common Wood Pigeon
- Copper Sunbird
- Corn Bunting
- Crane Hawk
- Crested Oropendola
- Crested Tit
- Crimson-crested Woodpecker
- Curlew Sandpiper