I just got 4 Rhode Island Reds and I bought a rooster, and Austerlop and one of the hens is very abusive to the rooster to the point that he runs past her each time they are close to each other. Last night I noticed that he was the only one sleeping on the floor and the others were on the perch together. I have put the head hen in a cage by herself for 3 days but she is back at the top of the order and always attacks the rooster. He is 5 months old but is heads above the hens, but he just won't take control. What should I do, if anything, to get things in order.