We have 8 hens. One hen constantly gets picked on, and the other hens won't let it eat. All of our hens are the same age, but this one hen is smaller than the others. We want this small hen to be able to grow, but the other hens won't let it eat, and they also pick on it periodically throughout the day. We are wondering if possibly the chickens know something we don't. Maybe this one small hen is sick or not developing properly? We currently have this one small hen separated, but we would like to be able to introduce it back to the other hens. Any ideas on what we could do for this hen?