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 |
|---|---|
| Western grebe (Aechmophorus occidentalis) | Birds |
| Western High Arctic brant (Branta bernicla) | Birds |
| Western Long-eared bat (Myotis evotis) | Mammals |
| Western pearlshell mussel (Margaritifera falcata) | Molluscs |
| Western racer (Coluber constrictor) | Reptiles |
| Western rattlesnake (Crotalus oreganus) | Reptiles |
| Western red-backed salamander (Plethodon vehiculum) | Amphibians |
| Western ridged mussel (Gonidea angulata) | Molluscs |
| Western screech owl (Otus kennicotii macfarlanei) | Birds |
| Western skink (Plestiodon skiltonianus) | Reptiles |
| Western small-footed myotis (bat) (Myotis ciliolabrum) | Mammals |
| Western snowy plover (Charadrius nivosus) | Birds |
| Western spotted skunk (Spilogale gracilis) | Mammals |
| Western toad (Anaxyrus boreas) | Amphibians |
| Westslope cutthroat trout (Oncorhynchus clarkii lewisi) | Fish |
| White bullhead (Ameiurus catus) | Fish |
| White crappie (Pomoxis annularis) | Fish |
| White sturgeon (Acipenser transmontanus) | Fish |
| White-belted ringtail (Erpetogomphus compositus) | Arthropods |
| White-headed woodpecker (Dryobates albolarvatus) | Birds |
| White-tailed deer (Odocoileus virginianus) | Mammals |
| White-tailed jackrabbit (Lepus townsendii) | Mammals |
| White-tailed ptarmigan (Lagopus leucura rainierensis) | Birds |
| White-winged scoter (Melanitta fusca) | Birds |
| Whitespotted greenling (Hexagrammos stelleri) | Fish |