Species MammalsWestern Gray Squirrel

Western Gray Squirrel

Sciurus griseus

UncommonMammal
Illustration of Western Gray Squirrel (Sciurus griseus)

The Western Gray Squirrel is a large, silver-gray tree squirrel of Pacific Coast oak woodlands, larger and more elegant than its eastern cousin. It depends heavily on acorn crops and uses scatter-hoarding to cache thousands of individual acorns across its home range each autumn. Populations in Washington are listed as state-threatened due to habitat loss, competition, and disease.

Habitat
Oak woodlands, pine-oak forests, and mixed conifer forests
Diet
Acorns, pine nuts, fungi, and berries
How common
Uncommon

Best time to see a Western Gray Squirrel

The best time to see a Western Gray Squirrel is January–July, when about 61% of U.S. sightings happen, based on 18,502 research-grade iNaturalist observations.

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