K.I.S.S. It is simply an eastern gray. Tamiascurus douglasii is our local "pine squirrel", small, loud, and all reddish brown. The Western gray is limited to a few small areas in western WA. The eastern gray has invaded many places, usually starting out in cities and working its way out. We even have a few here on the island, go figure how they got here as I know no one brought them.