| Common Name | Scientific name |
|---|---|
| Collared Flycatcher | Ficedula albicollis |
| Collared Forest-Falcon | Micrastur semitorquatus |
| Collared Plover | Charadrius collaris |
| Collared Pratincole | Glareola pratincola |
| Collared Redstart | Myioborus torquatus |
| Collared Towhee | Pipilo ocai |
| Collared Trogon | Trogon collaris |
| Colombian Crake | Neocrex colombiana |
| Colombian Mahogany - Abarco | Cariniana pyriformis |
| Colombian oak | Quercus humboldtii |
| Colombian walnut (Cedro negro) | Juglans neotropica |
| Comb Duck | Sarkidiornis melanotos |
| Comino crespo | Aniba perutilis |
| Common Black Hawk | Buteogallus anthracinus |
| Common Blackbird | Turdus merula |
| Common Bulbul | Pycnonotus barbatus |
| Common Buzzard | Buteo buteo |
| Common Chaffinch | Fringilla coelebs |
| Common Chiffchaff | Phylloscopus collybita |
| Common Chlorospingus | Chlorospingus flavopectus |
| Common Coot | Fulica atra |
| Common Crane | Grus grus |
| Common Crossbill | Loxia curvirostra |
| Common Cuckoo | Cuculus canorus |
| Common Eider | Somateria mollissima |
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