- Canary Islands Chaffinch
- Canary Islands Stonechat
- Cape Verde Swift
- Cape Verde Warbler
- Carrion Crow
- Citril Finch
- Coal Tit
- Common Blackbird
- Common Bulbul
- Common Buzzard
- Common Gull
- Common Kestrel
- Common Kingfisher
- Common Linnet
- Common Loon
- Common Moorhen
- Common Murre
- Common Nightingale
- Common Pheasant
- Common Redshank
- Common Redstart
- Common Reed Bunting
- Common Ringed Plover
- Common Sandpiper
- Common Shelduck
- Common Starling
- Common Swift
- Common Tern
- Common Whitethroat
- Common Wood Pigeon
- Corn Bunting
- Crested Tit