Hi, We have 34 chickens and three of them are older but the younger ones are now as big or bigger than the older ones. The younger chickens are just starting to think about laying. One is doing it daily now. The problem is that two of the older chickens are attacking her for getting in the nesting box (one of the nesting boxes). What can I do? The chicken being attacked is bleeding a little and they seem to be focusing on her face.