Her foot has been like this for about a week or two. I have her separated with 2 other hens in a chicken run type- area. The other hens are sweet and nothing is wrong with the except they have bare backs, and I want to grow their feathers out for Winter without roosters jumping on them and 'pulling them out'. Her foot left foot is very swollen, and it is very rough on the ball of her foot, almost like a callus, (sp?) but not a scab. She isn't putting much weight on it at all. What do you guys think??