| North Island Kokako Callaeas wilsoni | Passeriformes / Callaeidae | LC |
| California Quail Callipepla californica | Galliformes / Odontophoridae | LC |
| Elegant Quail Callipepla douglasii | Galliformes / Odontophoridae | LC |
| Gambel's Quail Callipepla gambelii | Galliformes / Odontophoridae | LC |
| Scaled Quail Callipepla squamata | Galliformes / Odontophoridae | LC |
| Amethyst Woodstar Calliphlox amethystina | Apodiformes / Trochilidae | LC |
| Gang-gang Cockatoo Callocephalon fimbriatum | Psittaciformes / Cacatuidae | VU |
| Ringed Teal Callonetta leucophrys | Anseriformes / Anatidae | LC |
| Vermilion Tanager Calochaetes coccineus | Passeriformes / Thraupidae | LC |
| Spotted Green Pigeon Caloenas maculata | Columbiformes / Columbidae | EX |
| Cory's Shearwater Calonectris borealis | Procellariiformes / Procellariidae | LC |
| Scopoli's Shearwater Calonectris diomedea | Procellariiformes / Procellariidae | LC |
| Cape Verde Shearwater Calonectris edwardsii | Procellariiformes / Procellariidae | NT |
| Ferruginous Partridge Caloperdix oculeus | Galliformes / Phasianidae | NT |
| Brown Barbet Caloramphus fuliginosus | Piciformes / Megalaimidae | LC |
| Sooty Barbet Caloramphus hayii | Piciformes / Megalaimidae | NT |
| Lucifer Sheartail Calothorax lucifer | Apodiformes / Trochilidae | LC |
| Beautiful Sheartail Calothorax pulcher | Apodiformes / Trochilidae | LC |
| Anna's Hummingbird Calypte anna | Apodiformes / Trochilidae | LC |
| Costa's Hummingbird Calypte costae | Apodiformes / Trochilidae | LC |
| Golden Greenbul Calyptocichla serinus | Passeriformes / Pycnonotidae | LC |
| Hose's Broadbill Calyptomena hosii | Passeriformes / Calyptomenidae | LC |
| Green Broadbill Calyptomena viridis | Passeriformes / Calyptomenidae | NT |
| Whitehead's Broadbill Calyptomena whiteheadi | Passeriformes / Calyptomenidae | LC |
| Eastern Chat-Tanager Calyptophilus frugivorus | Passeriformes / Calyptophilidae | NT |
| Western Chat-Tanager Calyptophilus tertius | Passeriformes / Calyptophilidae | VU |
| Red-tailed Black Cockatoo Calyptorhynchus banksii | Psittaciformes / Cacatuidae | LC |
| Glossy Black Cockatoo Calyptorhynchus lathami | Psittaciformes / Cacatuidae | VU |
| Kinglet Calyptura Calyptura cristata | Passeriformes / Tyrannidae | CR |
| Mangrove Finch Camarhynchus heliobates | Passeriformes / Thraupidae | CR |
| Woodpecker Finch Camarhynchus pallidus | Passeriformes / Thraupidae | NT |
| Small Tree Finch Camarhynchus parvulus | Passeriformes / Thraupidae | LC |
| Medium Tree Finch Camarhynchus pauper | Passeriformes / Thraupidae | CR |
| Large Tree Finch Camarhynchus psittacula | Passeriformes / Thraupidae | VU |
| Bleating Camaroptera Camaroptera brachyura | Passeriformes / Cisticolidae | LC |
| Olive-green Camaroptera Camaroptera chloronota | Passeriformes / Cisticolidae | NE |
| Hartert's Camaroptera Camaroptera harterti | Passeriformes / Cisticolidae | LC |
| Yellow-browed Camaroptera Camaroptera superciliaris | Passeriformes / Cisticolidae | LC |
| Black Cuckooshrike Campephaga flava | Passeriformes / Campephagidae | LC |
| Petit's Cuckooshrike Campephaga petiti | Passeriformes / Campephagidae | LC |
| Red-shouldered Cuckooshrike Campephaga phoenicea | Passeriformes / Campephagidae | LC |
| Purple-throated Cuckooshrike Campephaga quiscalina | Passeriformes / Campephagidae | LC |
| Guayaquil Woodpecker Campephilus gayaquilensis | Piciformes / Picidae | LC |
| Pale-billed Woodpecker Campephilus guatemalensis | Piciformes / Picidae | LC |
| Crimson-bellied Woodpecker Campephilus haematogaster | Piciformes / Picidae | LC |
| Imperial Woodpecker Campephilus imperialis | Piciformes / Picidae | CR (PE) |
| Cream-backed Woodpecker Campephilus leucopogon | Piciformes / Picidae | LC |
| Magellanic Woodpecker Campephilus magellanicus | Piciformes / Picidae | LC |
| Crimson-crested Woodpecker Campephilus melanoleucos | Piciformes / Picidae | LC |
| Powerful Woodpecker Campephilus pollens | Piciformes / Picidae | LC |