We started with three baby chicks in April. One turned out to be a rooster so we were forced to find him a new home. We are now left with two girls and one seems to be bullying the other. She controls when the other leaves the coop, and if we spread a treat in the run area for them she quickly chases the her back inside the coop so she gets the treats to herself. All we have are the two Leghorns, they are almost 18 weeks old. I'd love any advice!! Thank you!!