Very nice photo.
Do you think this could be a Ground Squirrel rather than a tree squirrel? The fur sure looks to be a ground squirrel.
Are they digging pretty good sized holes in or near your garden? Ground squirrels are a serious problem this year in southern Oregon. Much worse than earlier years.
Yes, I have noticed that on the 13 acres we have in Merlin. Can that be the changing climate?