Hello. I have a challenge for you. I have a small flock (24 chickens and 7 ducks). I live around Binghamton New York. I check on my birds at least 2 times each day. Today I discovered a hen that refused to move as I entered the hen house. The remainder of the birds were out doing their thing in the yard. She is missing some of the feathers on her lower back. She is not in a molt. I picked her up and placed her outside the henhouse. My rooster jumped on her (not for copulation) and another hen started to peck at her feathers. I broke them up. There is always plenty of food (layer ration and table scraps) and water available. Since discovering the bird I created a safe place for it in my basement. She has plenty of heat, water, a perch, food and space. She has not eaten or consumed water in 6 hours. No droppings. Does anyone have any advice?