| Common Name | Scientific name |
|---|---|
| Chirlobirlo | Chirlobirlo |
| Lance-tailed Manakin | Chiroxiphia lanceolata |
| Long-tailed Manakin | Chiroxiphia linearis |
| Macqueen's Bustard | Chlamydotis macqueenii |
| Houbara Bustard | Chlamydotis undulata |
| Whiskered Tern | Chlidonias hybrida |
| White-winged Tern | Chlidonias leucopterus |
| Black Tern | Chlidonias niger |
| Andean Goose | Chloephaga melanoptera |
| Magellanic Goose | Chloephaga picta |
| Ashy-headed Goose | Chloephaga poliocephala |
| Ruddy-headed Goose | Chloephaga rubidiceps |
| Kona Grosbeak | Chloridops kona |
| European Greenfinch | Chloris chloris |
| Oriental Greenfinch | Chloris sinica |
| American Pygmy Kingfisher | Chloroceryle aenea |
| Amazon Kingfisher | Chloroceryle amazona |
| Green Kingfisher | Chloroceryle americana |
| Green-and-rufous Kingfisher | Chloroceryle inda |
| Oahu Amakihi | Chlorodrepanis flava |
| Kauai Amakihi | Chlorodrepanis stejnegeri |
| Hawaii Amakihi | Chlorodrepanis virens |
| Green Honeycreeper | Chlorophanes spiza |
| Golden-browed Chlorophonia | Chlorophonia callophrys |
| Yellow-collared Chlorophonia | Chlorophonia flavirostris |
RingBase adheres to EURING codes.
