The Western gray squirrel is the largest tree squirrel in the state. It occurs from central Wasco, Jefferson, Deschutes, and Klamath counties west, except for unforested portions of the Willamette Valley, to central Washington, Benton, Lane, Douglas, Coos, and Curry counties. It is commonly associated with mixed forest communities.

These squirrels are wary and secretive, but curious; they examine new objects placed in their environment but, once captured, they often avoid live traps.

Western gray squirrels are an Oregon Conservation Strategy Species in the Willamette Valley ecoregion. 

Photo from ODFW