I introduced my rooster to my flock just over a month ago. Things have been going good. The girls just love when he finds them treats. One in particular has deemed herself his top lady and is almost always by his side (awww). But anyway I normally am at work by the time they come out of the coop but am on vacation this week and noticed he is almost aggressive when he comes out of the coop. Comes running out wing dancing and growling for lack of a better word. Chasing the girls around. Why does he do that?