Our austrolorps Nigella looks like she's picked a bare spot on her back. This explains the little tufts of black feather in her coop. We didn't notice it till we looked down on her from above on the deck and spotted the bare patch. Doesn't look bloody, and she's otherwise fine. She just came off a long period of brooding, so I don't know if that's a factor. It's also been hotter than heck here, so don't know if that's a factor also. Should I wait and see? Or is this serious enough for me to have to catch her and get her to the vet? thanks as always!