- Carib Grackle
- Carrion Crow
- Chinese Blue Flycatcher
- Chukar Partridge
- Citrine Wagtail
- Cockatiel
- Coconut Lorikeet
- Common Bulbul
- Common Cuckoo
- Common Linnet
- Common Myna
- Common Nightingale
- Common Redstart
- Common Ringed Plover
- Common Snipe
- Common Waxbill
- Common Wood Pigeon
- Corn Bunting
- Corn Crake
- Corsican Finch
- Cream-colored Courser
- Crested Lark
- Cretzschmar's Bunting
- Cut-throat Finch