I currently have 4 hens. I've recently noticed that one (LuLu) seems to be picking on one of the others (Lovebug) quite a bit lately. Lovebug is my sweetest of the four. I've even seen LuLu chase Lovebug around the run for what seems to be no good reason, just to try to peck her. Would getting a rooster put LuLu in her place?