A couple days ago I found one of my hens standing in a small cluster of weeds by my rabbit barn by herself after I had fed the rest of the flock in their open run about 200 feet away. This seemed very odd to me so I picked her up and took her back to the chicken run and put her down. ( Some information about this particular chicken- she doesn't roost at night, but wedges herself into a corner of the coop.on the floor. I got her as a young adult and she has always done this. Often I find our duck sitting near her) After I put her down she raced into the coop as if she had been lost but within seconds, several of the other chickens and one if the roosters were attacking her and chasing her around the pen! I rescued her from that, have looked her over for injuries or illness and found nothing wrong with her. Any ideas why the group suddenly ostracized her? She now is being a mascot to my rabbits for her safety.