One of my Barred Rocks has what I thought might be pasty butt, but now I'm not quite sure... the vent isn't covered, when I pick her up and check out her backside the vent is completely cleared (and puckering at me, for the lack of a better term, haha) but there's a blackish ball sort of under it. I assumed this might be where the umbilical cord was attached? A few other chicks had little bits hanging from that area, but they've all dried up and nearly all have fallen off. But this chick has the black ball still, and poop is getting stuck around it. I tried to get it off with warm, wet paper towels, but it seemed MORE attached to the chic than poop would be, like it wasn't something that SHOULD come off. Any ideas? Other than that, the chick has been eating normally, drinking, running around and is definitely at the top of her pecking order. She's also the biggest of the bunch, so that makes me think she's doing ok? Any help would be great. I'll try to snap an immodest pic of her tonight! Merci!