| Common Name | Scientific name |
|---|---|
| California Condor | Gymnogyps californianus |
| California Gnatcatcher | Polioptila californica |
| California Gull | Larus californicus |
| California Quail | Callipepla californica |
| California Scrub-Jay | Aphelocoma californica |
| California Thrasher | Toxostoma redivivum |
| California Towhee | Melozone crissalis |
| Calliope Hummingbird | Selasphorus calliope |
| Canada Goose | Branta canadensis |
| Canada Warbler | Cardellina canadensis |
| Canebrake Wren | Cantorchilus zeledoni |
| Canivet's Emerald | Chlorostilbon canivetii |
| Canvasback | Aythya valisineria |
| Canyon Towhee | Melozone fusca |
| Canyon Wren | Catherpes mexicanus |
| Caoba - Big-leaf mahogany | Swietenia macrophylla |
| Cape Barren Goose | Cereopsis novaehollandiae |
| Cape May Warbler | Setophaga tigrina |
| Cape Starling | Lamprotornis nitens |
| Cape Teal | Anas capensis |
| Cape Verde Shearwater | Calonectris edwardsii |
| Cape Weaver | Ploceus capensis |
| Capped Heron | Pilherodius pileatus |
| Caracoli - wild cashew | Anacardium excelsum |
| Carib Grackle | Quiscalus lugubris |
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