Cock-tailed tyrant 
Cockatiel 
Cockatoo Flounder 
Cockatoo waspfish 
Cocoa woodcreeper 
Cocoi Heron 
Coconut Lorikeet 
Cocos Batfish 
Coelognathus helena monticollaris 
Coelognathus philippinus 
Coffee Palm Viper 
coffin ray 
Cogger's Barred frog 
Coke's Hartebeest 
Collared antshrike 
Collared aracari 
Collared bush robin 
Collared Cat Snake 
Collared falconet 
Collared finchbill 
Collared flycatcher 
Collared forest falcon 
Collared Forest Gecko 
Collared gnatwren