(West Haven Ut USA)
I have a male Jack Russell that has not been nutured. He is 9 years old very active & happy. 2 or 3 times a day he will pound or thump his back leg and paw in a steady rhythm while sitting. At the same time he sticks his tongue out and in also in rhythm for several minutes. He has never mated or been studded out. He is very loving and friendly to all. He loves all children and loves to play ball with anyone who is willing. Is this strange behavior?