I have a flock of 5 hens and one rooster. Lately we have noticed some bullying going on in the flock. One hen, Pinky, is being singled out by every single chicken. The rest don't let her get near them, they run her off, peck her, chase her. She has to forage by herself, she can't socialize, and stays on the roost during the day before they are let out to free range for the afternoon. I know bullying is usually a pecking order thing, but the ENTIRE FLOCK???? What do I do, what should I do, is there anything to do? I want her to be a part of the group, since chickens are social animals.