Unusual Friendship

My dog sits at the window most of the time. He gets very excited when something outside gets his attention. Lately, this has been our resident chipmunk.
This little rodent seems to find it entertaining to taunt the dog. It doesn't seem to be fearful of him and chirps at JoJo whenever he's in the vicinity.

He's just outside the door. I'm here, come get me! Then it's off to the side of the house. Over Here! Here I am!

It's absolutely hilarious when he pops up from one hole while JoJo is looking down another, something I have yet to catch on video. I truly believe that the chipmunk finds this game as much fun as the dog does.