I've heard that older hens tend to teach a young cockerel his manners, but unfortunately in my case it didn't work. I kept 3 of my 4 yr old hens and integrated a flock of 5 pullets and 1 cockeral. They were supposed to be all pullets, but that's the way it goes. Anyway, the pullets are now hens and the cockerel now a rooster. The older hens keep to themselves and if the rooster sees one of them he chases them and they run like the dickens. Sometimes he catches one of them and has his way with her, but they are not happy at all.