HI I thought my little girl might have mites or lice but i can't find anything on her or in the coop---and everyone else looks great. I did clean out the whole coop and dust with rotenone with sulphur and DE. I filled it with fresh pine shavings and i have separated her so no one can pick on her. I haven't dusted her. Here are some pictures of the feathers on her back. Her tail is affected too. See how the feathers look frayed and moth eaten? Should i just dust her and hope for the best---or is there something else wrong with her?