- Calandra Lark
- Canada Goose
- Cape Bulbul
- Cape Bunting
- Cape Cormorant
- Cape Crow
- Cape Gannet
- Cape Grassbird
- Cape Petrel
- Cape Rock Thrush
- Cape Rockjumper
- Cape Sparrow
- Cape Starling
- Cape Teal
- Cape Vulture
- Cape Wagtail
- Cape Weaver
- Capped Wheatear
- Carp's Tit
- Carrion Crow
- Caspian Gull
- Caspian Tern
- Chestnut-backed Sparrow-Lark
- Chestnut-banded Plover
- Chestnut-vented Nuthatch
- Chestnut-vented Warbler
- Chinese Pond Heron
- Chorister Robin-Chat
- Cinereous Bunting
- Cinereous Vulture
- Cirl Bunting
- Citrine Wagtail
- Coal Tit
- Collared Flycatcher
- Collared Pratincole
- Common Blackbird
- Common Buzzard
- Common Buzzard (vulpinus)
- Common Chiffchaff
- Common Chiffchaff (tristis)
- Common Crane
- Common Cuckoo
- Common Eider
- Common Firecrest
- Common Goldeneye
- Common Greenshank
- Common Gull
- Common Hill Myna
- Common Kestrel
- Common Kingfisher
- Common Linnet
- Common Loon
- Common Merganser
- Common Moorhen
- Common Nightingale
- Common Ostrich
- Common Pheasant
- Common Pochard
- Common Quail
- Common Redpoll
- Common Redshank
- Common Redstart
- Common Reed Bunting
- Common Reed Warbler
- Common Ringed Plover
- Common Rock Thrush
- Common Rosefinch
- Common Sandpiper
- Common Scimitarbill
- Common Scoter
- Common Shelduck
- Common Snipe
- Common Starling
- Common Swift
- Common Tern
- Common Whitethroat
- Common Wood Pigeon
- Corn Bunting
- Corsican Finch
- Corsican Nuthatch
- Crested Barbet
- Crested Lark
- Crested Tit
- Cretzschmar's Bunting
- Crimson-breasted Shrike
- Crowned Cormorant
- Crowned Lapwing
- Curlew Sandpiper