Hello! My daugther has 3 females and 1 male call duck. The male is seperate for now, outside the tractor, so the girls will be not missing head feathers for the county fair in a few weeks. My issue now is one of the females is jumping on the other girls and ripping their head feathers out just like she is mating with them. Is it a "pecking order" thing or what?!? I don't have room to seperate the girls any more and I don't want missing head feathers either. Thanks for any advice.