I have 5 hens that are all 18.5 weeks old and should start laying any day. They have some aggression issues, but I'm having trouble figuring out which hen is the problem. A few weeks ago I went out to find one of my two Rhode Island reds with much of her rump plucked bare and bloodied by the other girls. I isolated her and treated with bluekote. After a few days, I reintroduced her and things have been great. Then today I went out and my other Red had been plucked and bloodied the same way, but it was even worse. I suspect the issue is that they are bored because they haven't been allowed to freerange the last week or so thanks to a family of raccoons that live in a tree near the coop (the youngsters are still active during the day). This means they have been isolated to their coop (20sqft) and run (40 sqft). I try to give them enrichment to keep them busy, but can only do so much. Do you have any advice to help fix the aggressive bevahior? I'm desperate to keep my girls from getting injured again.