Not an emergency, but I don't know if I should be concerned. Well I am concerned, I just don't want her to be hurting or unhealthy and wonder what's causing it. She's a 10½ month old Blue Wyandotte. The only thing I think it could be from is chafing from the feeders, which are made of PVC pipes and they have to reach a ways inside. Could that be pulling her feathers off? I've been using this type of feeder for almost 3 years and it doesn't seem to affect any other chickens and the opening is smooth. It doesn't seem like a natural molt and I haven't seen noticeable pecking from other birds, especially in that odd spot. Thoughts?