is it you, alvin?

We've had a little chipmunk visit our bird feeder recently and he's got this stubby, little tail. I wonder if it means he's an adolescent or maybe he lost it in a gang fight or something. Either way, here he is stuffing his cheeks with sunflower seeds.

Here he is making his way to the feeder - it's like
'where's waldo' chipmunk edition
still scouting...
jackpot!
stubby tail
this cardinal was not happy the chipmunk was there