Nervous Bobs

I've been watching the bobtailed squirrel through the binoculars. He does have white on his undersides, sort of streaked with gray. And the tip of his short tail is white. He chased away another squirrel and had the side yard all to himself, but he still couldn't sit still. He jumped and scooted around the yard for a few minutes, then all of a sudden he sat up on his hindquarters, folded his hands on his chest, and looked (it seemed) straight at me for ten seconds or so. Then he practically flew to and up the oak tree, hitting the ground about twice before he got there. I think he's part rabbit.