- Canada Goose
- Canary Islands Chaffinch
- Canary Islands Chiffchaff
- Canvasback
- Cardinal Woodpecker
- Carrion Crow
- Caspian Tern
- Cassin's Flycatcher
- Chestnut-backed Antbird
- Chestnut-backed Sparrow-Lark
- Chestnut-sided Warbler
- Clay-colored Thrush
- Coal Tit
- Cocoa Woodcreeper
- Collared Palm Thrush
- Common Black Hawk
- Common Blackbird
- Common Bulbul
- Common Buzzard
- Common Chiffchaff
- Common Chlorospingus
- Common Cuckoo
- Common Firecrest
- Common Kestrel
- Common Linnet
- Common Moorhen
- Common Myna
- Common Ostrich
- Common Pheasant
- Common Potoo
- Common Redshank
- Common Redstart
- Common Reed Warbler
- Common Ringed Plover
- Common Sandpiper
- Common Scimitarbill
- Common Shelduck
- Common Starling
- Common Tern
- Common Whitethroat
- Common Wood Pigeon
- Coppery-tailed Coucal
- Cory's Shearwater
- Cream-winged Cinclodes
- Crested Barbet
- Crested Caracara (cheriway)
- Crested Francolin
- Crested Guan
- Crested Lark
- Crested Owl
- Crested Tit
- Crimson-breasted Shrike
- Crimson-collared Tanager
- Crowned Hornbill
- Crowned Lapwing
- Cut-throat Finch