Greetings! We have 6 hens and it seems that (starting with one) a few have their toes have caked with very large mud balls. They are hard and dry. Strange though. We have had them a year and this is the first time I've ever seen anything like this. It is "spreading" to the others now. We had a recent rain and the coop has been muddy, but nothing at all unusual. Could it be something else? A cyst? It covers the toe and talon. I'll try to figure out how to post a photo. But in the meantime, I thought I would soak the foot tonight (I can only handle them at night) and see if the ball softens enough to pull it off. Can it injure her where it's attached to her foot? Like take off scales along with the ball? I'm really new to any home curing! And being an urban chicken keeper, our vet is not so up on chicken health. Thanks very much! This is such a wonderful resource!