Hi everyone - I went out this morning to check on the chickens and I have a pullet with a small circle of feathers missing right in front of her tail. There is a little bit of blood, and some of the feathers are half gone. There are a few feathers around the coop from her, but only about three - all of the others seem to have disappeared. All of the other chickens are fine, no abnormalities. All of her feathers were there yesterday. Any thoughts? What can I do to help her heal more quickly? Thanks!