ETA: Now she's breathing very heavily, beak open. On the 2nd page, I posted that I think it's mites because I found some critters on her while giving her a bath. Still no poop in her kennel. Is this the end for her? Could mites do this? For the last few days I've seen one of my BOs sitting on the coop floor but being a new chicken owner, I wasn't picking up on a problem. Today, I found her in the run just standing there and saw dried poop around her butt. I've removed her from the run to her own space. A friend suggested adding apple cider vinegar to her food and wait and see. I don't see any mites. Her food the last few days has been the regular layer feed, some apples, and maybe a piece of bread. Any ideas what's wrong with her? What should I do from here on out? eta: I should've added that she's lethargic, is missing some feathers near her bum, and it appears by her comb that she's being pecked. Friend said she may be getting pecked *because* she's sick. I'm a little worried that one of my other BOs could be getting whatever this is because on one or two of the nights this girl was on the coop floor, another BO was in the nesting box but not broody.