This little guy has a bunch of burrows around our house. Literally. This one is under the sidewalk by our front porch. There's one under the office window, a few around the deck, some under the driveway, and some in the side yard in a rock bed. I watched him stuffing his cheeks with nuts from the sidewalk burrow, and then scampering off to one of his other burrows and returning empty cheeked. Apparently he's distributing his food supply amongst his various homes in preparation for winter. He's a cute little guy, even if he does chew up my flowers in the warm seasons. :-\ I guess he can stay.
(click photos to enlarge)