This arrangement is very frustrating.  They just do not get along.  Ethel is queen, then Lucy, Oscar is next and poor little Nina is at the bottom of the pecking order.  Oscar is getting frisky - very frisky. Poor little Nina is his target for now. She runs in the coop to the safety of the nest boxes. Oscar always follows her.

Evil One and Lucy do not want them in their coop. They own it. Ethel charges in and starts to fight with Oscar and chases him out. Then she goes after Nina. You would swear there were forty chickens in there. I lift the lid off the nest boxes and rescue Nina.

She bites me. I put her and Oscar back in the chick hutch.

Back to the 'chicken books' to look for a solution....