Animals
| Category | Group | Common Name | Genus | Species |
|---|---|---|---|---|
| Bird | Gulls and Terns | Yellow-Footed Gull | Larus | livens |
| Bird | Blackbirds | Yellow-Headed Blackbird | Xanthocephalus | xanthocephalus |
| Mammal (Small) | Chipmunks | Yellow-Pine Chipmunk | Tamias | amoenus |
| Bird | Warblers | Yellow-Rumped Warbler | Setophaga | coronata |
| Amphibian | Toads | Yosemite Toad | Anaxyrus | canorus |
| Bird | Rails and Coots | Yuma Clapper Rail | Rallus | longirostris |
| Mammal (Small) | Bats | Yuma Myotis | Myotis | yumanensis |
| Reptile | Lizards | Zebratail Lizard | Callisaurus | draconoides |