So I got my 16 chicks in the mail this morning. They're all super healthy, moving around and eating etc except one. This one (I dunno if it's a boy or a girl) was very lethargic and so much smaller than the others and then I noticed pasty butt. I cleaned it off with warm olive oil and water and put it back in the bruder. But it's legs are kinda splayed out and it's very sleepy and buffeted if one of the others bumps into it. It's really sad. I've checked the butt (pictured) possibly prolapsed? Anyway is it at all likely to survive? They were shipped Tuesday afternoon so I'm thinking it had pasty butt a maximum of 24 hours before I cleaned it Thursday morning since they don't get it right away or do they? Anything else I can do? Also how do you tell male or female?