my 9 week old barred rock rooster has been a bit aggressive lately. He seems to chase and peck a bird once or twice but then he stops.. but shortly after he runs and does it to another one. It's never more than a peck or two but they are getting scared when he does it. I really like my rooster and want to keep him but if he's going to start injuring the girls he's got to go. Why can't he be a good rooster and protect them! Is this a serious problem or is it kind of normal? They get about 8.5 square feet per bird, which is a teeny bit less than the recommended but I really don't think crowding is a problem, as they are still not full grown yet.