I have a Rooster I acquired about a month ago. The past few days I have caught him trying to mate with one of my EE’s. She is a year old and my Roo is 8/9 months old. Both times he climbs on the hens back another hen (who is about 3 yrs old) comes and knocks him off. My 3 older hens are about 3 years old and have not accepted this new Roo. They tolerate him but he isn’t big man on campus per say. I’m wondering why the older hens are knocking him off the EE?