Aww that's too bad, maybe they will stop soon. I have a bunch of hens right now that are getting picked at so much that they have lost a bunch of feathers. I have fed them all flock raiser every since they went off chick food so the lack of protein shouldn't be the problem. The crazy thing is the picking didn't start until after winter. They free range most of the day so being crowded isn't a issue, but by morning more are picked at.