My little white turken/EE mix girl has not been feeling well this week. She is all hunched over and stays by herself. She is roughly 4-5 years old, never had any illnesses. She eats game bird breeder and oyster shell free choice. Poop is starting to stick to her back side and underside now. Real thick crusty white and black poop. I noticed twice now in the past week she layed a shell less egg from the roost at night. Today I noticed all the skin around her vent is black. Her skin is usually pinkish. I am going to bring her inside tonight and give her a warm bath tomorrow. I was going to treat her for cocci to start but now I'm not sure. She was wormed with eprinex a little over a month ago. Any idea what this could be? The black skin is throwing me off. Thanks for any insight.