My roo likes to rub his head on the back of my leg, like a dog, when I am putting water or food out. He has been doing it since I can remember so that doesnt bother me. But now he has a new weird issue, he rubs his butt on me. He lifts his tail feathers high as he can and literally rubs his rearest of ends on my leg. Is that a possesive thing or did he get hit in the head one too many times?