Need some advice.. this is my first time with chicks and they are about 3-4 weeks old. I have 5 different breeds and they all seem to get along great. I noticed this spot on my barred rock today. It's behind her eye and she keeps scratching at it. It's not bloody and doesn't look like it's scraped...almost just looks like feathers are missing. Any ideas? Does it require medical attention? Could she have been injured by one of the others? She seems to be one of the boldest of the group.