Carpet python 
Carpet Sole 
Carrion Crow 
Carter's rock gecko 
Carunculated caracara 
Cascade golden-mantled ground squirrel 
Cascades frog 
Caspian bent-toed gecko 
Caspian Grasping Gecko 
Caspian gull 
Caspian Tern 
Caspian whipsnake 
Casqued oropendola 
Cassin's auklet 
Cassin's honeybird 
Cassin's kingbird 
Cassins finch 
Cassins vireo 
Castelnau's Antshrike 
Cat Ba langur 
Cat gecko 
Catalan wall lizard 
Cattien Bent-toed Gecko 
Cattle