It seems like our chickens have been having a run of bad luck. We are first time chicken owners and have researched a lot, but they’ve been getting sick more often than I’d like. This one looks like she was molting above her tail feathers for a while. This morning I came out and saw this. She’s eating and drinking fine and I don’t see the other chickens messing with her. There are 11 hens and two roosters. All are free ranging with a safe coop at night. I just sprayed her with Vetericyn Plus, but I’m not sure if I can put anything else on her or if I should separate her. Any suggestions?