- Calandra Lark
- Canada Goose
- Cape Cormorant
- Cape Crow
- Cape Eagle-Owl
- Cape Sparrow
- Cape Starling
- Cape Teal
- Cape Wagtail
- Cape Weaver
- Capped Heron
- Carrion Crow
- Changeable Hawk-Eagle
- Chat Flycatcher
- Chestnut-bellied Sandgrouse
- Chestnut-naped Spurfowl
- Chestnut-vented Warbler
- Chestnut Sparrow
- Cinereous Vulture
- Cinnamon-breasted Bunting
- Cinnamon-chested Bee-eater
- Cirl Bunting
- Citril Finch
- Coal Tit
- Common Blackbird
- Common Bulbul
- Common Buzzard
- Common Chiffchaff
- Common Crane
- Common Cuckoo
- Common Eider
- Common Firecrest
- Common Goldeneye
- Common Greenshank
- Common Gull
- Common Kestrel
- Common Kingfisher
- Common Linnet
- Common Merganser
- Common Moorhen
- Common Murre
- Common Nightingale
- Common Ostrich
- Common Pheasant
- Common Pochard
- Common Redshank
- Common Redstart
- Common Reed Bunting
- Common Reed Warbler
- Common Ringed Plover
- Common Rock Thrush
- Common Rosefinch
- Common Sandpiper
- Common Shelduck
- Common Snipe
- Common Starling
- Common Tailorbird
- Common Tern
- Common Waxbill
- Common Whitethroat
- Common Wood Pigeon
- Coqui Francolin
- Corn Bunting
- Cotton Pygmy Goose
- Crested Caracara
- Crested Francolin
- Crested Lark
- Crested Serpent Eagle
- Crested Tit
- Crestless Curassow
- Crowned Hornbill
- Crowned Lapwing
- Curlew Sandpiper
- Cut-throat Finch