Hi everyone. I have a flock of RSL pullets (about 24 weeks old). Yesterday I noticed one pullet paying particular attention to anothers rear end. I didn't think too much of it but today her feathers seem quite dirty in that area. I just brought her in to check her and she's missing most of the feathers in that area. The ones that are there are in a kind of clump in one area. I couldn't see any lice or mites or any other kind of bugs or worms. She seems a little light as well. Is there something else I should look for. Otherwise she seems healthy and happy, eating and drinking and socializing with everyone else. Her comb and wattles are bright red but her ear lobes are white. Not sure if that means anything since she's still pretty young. Any ideas about what might be causing this? Everyone else in the flock has great feathering. Thanks for any info.