When I went down to feed my chickens this morning, I found that one had spent the night alone in the pen, rather than going inside the coop with the others. She was acting oddly, almost like OCD-type preening. I didn't see any bloody spots, so I figured she'd be okay when the others came out. I mentioned it to my husband and he went to check on her this afternoon. He found her still doing this crazy pecking/preening of herself, only now she's managed to bloody herself, and of course her buddies can't help but take a peck or two, when they see that bloody spot. So, I brought her up and penned her in the garage, in my brooding pen. (4'x8' plywood box). I sprayed her down with blu-kote, then applied udder balm over top that, and put a denim "chicken apron" on her, so she couldn't get to the sore spot and keep pecking at it. When I was treating her, I was on the lookout for lice or mites, but didn't see anything. So, she'll be spending the next couple of days in the garage. I'm hoping under the apron, she'll heal quickly enough that I can put her back into the flock, maybe by the weekend. I'll leave the apron on her, and in fact, I'm thinking about making a few other aprons for my "lowest pecking order" birds, to protect them, as well. My thought was to put the aprons on those girls one morning, and then maybe that night, slip her back into the coop with the rest of them. If she's only separated for a few days, will that be adequate for reintroducing her, or will I need to go through the whole caging her separately, but in view thing? I'm assuming the crazy behavior on her part was maybe stress related, from being inadvertently separated from the flock, and left outside on a cold snowy night. So, I really don't want to stress her more, by keeping her separated for any longer than I have to... Anything else I should know?