they are 12weeks old, one standard welsummer, one bantam cochin. the broody is a standard buff orp and she looks just like the cockerels "mother". Everytime she leaves the nest they chase her around the yard trying to tear at her comb and pulling her feathers. What the heck is the deal, they NEVER go after anyone else in the flock. In fact they are both terrified of the other big girls. I'm new at this rooster thing, somebody please tell me whats happening!!