I know I've heard of chicks getting pasty butt and I think one of my 6day old bantams might have it. I don't know a lot about chicken anatomy but he's got (what I assume is poo) stuck to his bum. It's not covering the top opening, but don't they have 2 different openings down there? One for eggs and one for deficating right? So I have used warm water on a wash cloth and it's really stuck hard on there. I don't want to tear it off and rip his skin off or anything but this stuff won't come off. Please help....