My

, who I've had for 3 months, has been behaving badly ever since re-growing his flight feathers. In particular, he has become obsessed with the kitchen sink. The first thing he does when I let him out of his cage is fly over to the kitchen counter. He just runs back and forth screaming, sometimes dragging his beak along the surface of the counter, until he eventually decides to fly down into the sink. If I remove him from the counter and put him on top of his cage, he will just fly back over. Thinking that perhaps he is just doing it because he is curious about this forbidden area, I decided to just let him stay on the counter to see if he would get bored with it after a while. I tried putting a couple of toys on the counter, but he would fling them off immediately. I also tried to teach him a new trick while he was on the counter, in which he would step up onto my forearm instead of my hand. When I offered him my forearm, he bit into it viciously multiple times to the point of breaking the skin. Although clipping his wings would obviously solve the problem, I would like to try having him fully flighted for a while. Do any of you who have advice for dealing with this situation?