I have 11 chickens, 5 Reds and 6 black bantams. They have begun to pick feathers out of each other. I saw one doing it, and some are really bad around the tail area and on the upper back. I have tried everything. They have access to an outer run and have a 12x10 coop. I don't know what to do.
If you have any advice for this reader, leave a comment!