So my Australorp has been bald for awhile. I thought that our top hen (aka devil bird) had been ripping her feathers out. Devil bird now lives in a separate coop and her feathers aren't growing back and its been months. The skin seems very dry and there is no new feather growth. This is what she looks like. My EE has been looking rougher and rougher over the last several months and I was beginning to think that my Australorp might be the feather picker (even though I don't know how she would have plucked her own head). This is what my EE's back looks like: I've been checking them for bugs consistently because they both look kind of ragged. Have seen nothing. Cleaned out and whitewashed the coop last weekend. Saw no evidence of mites. Last night I noticed rough spots on my EE's skin and then found some on my Australorp. They are kind of like scaley yellowish crusty scabs. This is the best I could do at getting a picture. They are all over the EE's back and are in the area where her feathers are a mess. They are kept in a sand run with wood chips in their coop. They eat Cascade Layer and are still eating just fine. Droppings are normal. They seem fine except that they look like a mess... and have weird scabs on their backs! Any ideas?