About a month ago I get three light Sussex hens and at the time I had buff orpingtons. Two roosters and three hens. I gave them away because they were very aggressive to me and the three Sussex. I decided I still needed a rooster to go with the three hens and so I went back to the place I got the hens and he had a rooster that was just a little older than the hens. He is afraid of the hens, they like to chase him and peck at him. They have not hurt him yet he's just a big Chicken!!! When I go out to let them out he runs to me. Will he ever grown up??? I was hoping when he started into being an adult and started getting urges he would stick up for himself...Any thoughts??? Thanks.