Hello. So I've just seen today my leghorn has an extremely muddy rear end. It looks as though she's dust bathed but the mud has form dread looks and is all matting in to the feathers. She looks a right state. This is my first year keeping chicken so Its all new to me. Is this molting or sign or some type of illness. Maybe its normal? The chickens are less than a year. 1 of my other has just been though molt.