Cactus canastero 
Cactus wren 
Calandra lark 
California Scrub Jay 
California Thrasher 
California towhee 
Campo troupial 
Canada jay 
Canada warbler 
Canarian Chaffinch 
Canary white-eye 
Canyon towhee 
Cape Batis 
Cape Bulbul 
Cape bunting 
Cape Canary 
Cape Crow 
Cape grassbird 
Cape longclaw 
Cape May Warbler 
Cape Robin-Chat 
Cape rock thrush 
Cape rockjumper 
Cape siskin