Learn more about a specific fish or wildlife species in Washington.
Species marked with an "AIS" badge are aquatic invasive species. For more information about these environmentally and economically destructive species, visit the Aquatic invasive species page.
| Species | Category |
|---|---|
| Townsend’s ground squirrel (Urocitellus townsendii townsendii) | Mammals |
| Trumpeter swan (Cygnus buccinator) | Birds |
| Tufted puffin (Fratercula cirrhata) | Birds |
| Tui chub (Siphateles bicolor) | Fish |
| Tundra swan (Cygnus columbianus) | Birds |
| Turkey vulture (Cathartes aura) | Birds |
| Umatilla dace (Rhinichthys umatilla) | Fish |
| Unknown Oregonian (snail) (Cryptomastix mullani hemphilli) | Molluscs |
| Upland sandpiper (Bartramia longicauda) | Birds |
| Valley silverspot (Argynnis zerene bremnerii) | Butterflies and moths |
| Van Dyke's salamander (Plethodon vandykei) | Amphibians |
| Vaux's swift (Chaetura vauxi) | Birds |
| Vermilion rockfish (Sebastes miniatus) | Fish |
| Viceroy (Limenitis archippus lahontani) | Butterflies and moths |
| Walleye (Sander vitreus) | Fish |
| Walleye pollock (Gadus chalcogrammus) | Fish |
| Walleye pollock (South Puget Sound) (Gadus chalcogrammus) | Fish |
| Warmouth (Lepomis gulosus) | Fish |
| Washington ground squirrel (Urocitellus washingtoni) | Mammals |
| Wenatchee forestfly (Malenka wenatchee) | Arthropods |
| Western bluebird (Sialia mexicana) | Birds |
| Western bumble bee (Bombus occidentalis) | Arthropods |
| Western fence lizard (Sceloporus occidentalis) | Reptiles |
| Western floater (Anodonta kennerlyi) | Molluscs |
| Western gray squirrel (Sciurus griseus) | Mammals |