My parrottlet is about 5 months old. He is talking which is neat. But we cannot get him to quit biting. We have scolded him (saying no) and then tapping his beak. What else can we do?? He won't come out of his cage. When I first got him he was coming out but then he started biting and I read somewhere that when they do that you tell them no and put them back in their cage. He is molting so does this mean anything? He is becoming a mean bird and I don't want a mean bird I want a loving one.