He flew over and landed on my hand, bit me hard a few times and went up my arm(few more hard bites) and onto my shoulder(few more hard bites). It doesn't seem to be an aggressive or mean biting. He sits on hand and bites me as hard as he can. Like he is eating food. But I can pet him(tail, back and head). He is continuosly biting me though, and trying to eat my shirt. He has plenty of food, and has been givin treats all day. He also preens my knee very lightly(no biting) But my hands, arms, neck and ears he isn't gentle with. And when he bites he doesn't let go. I firmly say "NO BITING", and rub his head. So things are already getting better. In a sense anyways. If I trade him from hand to hand, I will get very hard bites as well. Thank you everyone for your advice. He is constaintly biting at something.