Gray Squirrels are endangered? – An SCOL Nature Spotlight by Vicki Fields

September 9, 2024

Yes, the State of Washington designated the Western Gray Squirrel (Sciurus griseus) as endangered in 2023. This is because there are only three areas in the state where the species maintains healthy populations. Klickitat County, including SCOL, is one of those areas. According to the Washington Dept. of Fish and Wildlife, western grey squirrel colonies in this state have endured decades of threats such as habit loss, wildfires, highway mortality, and disease. Populations are declining. The story is different in Oregon, particularly in the Willamette Valley, where these squirrels have been able to recover from such threats.

Our gray squirrel community at SCOL is thriving. Due to our unique Eastern Cascade Oak-pine Forest we have the perfect habitat for this species. Dora DeCoursey and Bill Spangle have so far spotted over 20 nest trees on our property, identified by green ribbons (see photograph). Gray squirrels use some nests for rearing young and others for night beds, so it is difficult to estimate the actual number of animals. With this many nest trees, however, local biologists feel we have a healthy nesting colony worth studying. SCOL staff plan to work with Columbia Land Trust and WDFW to conduct more formal squirrel surveys on our land which will add to the research data for our state.

Western grays are not the only squirrels on our property but are the only species designated as endangered. Other types are the Douglas squirrel, Townsend’s ground squirrel, Northern flying squirrel, and the very abundant California ground squirrels that dig extensive tunnels under our cabins. Gray squirrels can be easily identified by their long bushy tail, grey fur, and white bellies.

During your next visit to SCOL notice the nest trees with green ribbons and try to identify our Western gray squirrels among the many small creatures that share our beautiful land. Also, if you would like to assist with squirrel surveys in 2025, contact the SCOL staff. Become a part of the mindful stewardship of this sacred environment.