A few of my hens are slowly losing some of their feathers. I had noticed that one of our roosters had gotten pretty aggressive with the hens so we rehomed him. In the last week I noticed one specific hen had a patch of feathers missing on its lower back. We still have a rooster and I'm not sure we have a more or live problem or a rooster problem. They're all eating well, have lots of energy and are laying as usual. I'm including some pictures in hopes of someone being able to give me a better idea of what our issue is so we can take care of it! Any suggestions would help! Thank you!!!!