- Canada Goose
- Carrion Crow
- Citril Finch
- Citrine Wagtail
- Coal Tit
- Collared Falconet
- Common Blackbird
- Common Buzzard
- Common Cuckoo
- Common Eider
- Common Firecrest
- Common Goldeneye
- Common Grasshopper Warbler
- Common Greenshank
- Common Gull
- Common Iora
- Common Kestrel
- Common Kingfisher
- Common Moorhen
- Common Murre
- Common Pheasant
- Common Pochard
- Common Redshank
- Common Reed Bunting
- Common Reed Warbler
- Common Ringed Plover
- Common Sandpiper
- Common Shelduck
- Common Snipe
- Common Tern
- Common Whitethroat
- Common Wood Pigeon
- Corn Bunting
- Corsican Finch
- Crested Lark
- Crested Serpent Eagle
- Curlew Sandpiper