my cockatiel is 4 years old. the problem is he wants attention 7/24 he doesnt stop screaming until I get him out of his cage and turn my head to him. I actually spend enough time with him out of his cage. but once he goes back into cage he looks very unhappy. and he likes to rub his genital area to a piece of cloth sort of like masturbating. and when he finished he looks happy. Im wondering if this behaviour is normal or not.