- Cabot's Tern (eurygnathus)
- Capped Heron
- Carib Grackle
- Channel-billed Toucan
- Chestnut-bellied Seedeater
- Chestnut-rumped Woodcreeper
- Chestnut Woodpecker
- Cinereous Antshrike
- Cinereous Becard
- Cinnamon Attila
- Cocoi Heron
- Collared Forest Falcon
- Collared Plover
- Common Gallinule
- Common Ground Dove
- Common Potoo
- Common Scale-backed Antbird
- Common Tern
- Common Tody-Flycatcher
- Copper-tailed Hummingbird
- Coraya Wren
- Crane Hawk
- Cream-colored Woodpecker
- Crested Caracara (cheriway)
- Crested Oropendola
- Crimson-crested Woodpecker
- Crimson-hooded Manakin
- Crimson Topaz