Cacatuidae
Pink cockatoo, Major Mitchell's cockatoo, Leadbeater's cockatoo
Calcariidae
Snow bunting
Calyptomenidae
Whitehead's broadbill
Campephagidae
Scarlet minivet
Capitonidae
Red-headed barbet
Caprimulgidae
Short-tailed nighthawk
Cardinalidae
Yellow-green grosbeak
Casuariidae
Northern cassowary, single-wattled cassowary
Cathartidae
Andean condor
Certhiidae
Indian spotted creeper
Cettiidae
Black-faced warbler
Charadriidae
northern lapwing, peewit, pewit, tuit, tew-it, green plover, pyewipe, lapwing
Chloropseidae
Jerdon's leafbird
Ciconiidae
African openbill
Cinclidae
Brown Dipper
Cisticolidae
pale prinia
Coliidae
Red-faced mousebird
Columbidae
Luzon bleeding-heart, bleeding-heart dove, bleeding-heart pigeon, punay
Coraciidae
Indochinese Roller, Burmese roller
Corvidae
ratchet-tailed treepie
Cotingidae
Guianan cock-of-the-rock
Cracidae
Helmeted curassow, northern helmeted curassow
Cuculidae
Hodgson's hawk-cuckoo, whistling hawk-cuckoo