Mr. Chipmunk! He's known around our house as Chip E. Munk, but his scientific name is Tamias striatus. He is not a true hibernator, since he will periodically awaken in his burrow and have a nibble of the food he stored last fall. However, once he's up and out of his burrow, he's up - another sign of spring.
I first saw him out and about last week. He has been taking advantage of the peanuts and safflower I put out for the birds.