Louis the Polish rooster has had a bald spot on the top of his head for several weeks. It looked like it was growing in, but has now gotten bigger. The skin doesn't appear to be broken, and he doesn't act like there's any discomfort. He lives in the yard with one hen, so I know the other chickens aren't doing it.
Any ideas what caused it, or what I should be doing for it?
Any ideas what caused it, or what I should be doing for it?