Hello! So my chicken has started looking feathers a few months ago and I never really knew why. Then yesterday I saw her picking at a patch of skin inside of her tail feathers just above her butt. It is red with bits of white, yellow, and even black. I am really worried. I have been separating her from my other chickens so they don’t pick at her, but as she has been separated, I’ve been noticing she has diarrhea. I don’t know what it is but does anyone else know? I hope it is treatable, she is such a sweetheart chicken