My 1.5 year old RIR hen Cornelia Marie has lost a massive amount of feathers in the last couple of days. She is isolated from the other hens so I know it's her. It looks like she exploded! Feathers everywhere! I have seen the girls molt but this looks like nothing I've seen before. I've checked her for mites and she is fine. Can this be a version of molting or should I be looking for something else? She acts fine, eats and drinks normally. She just looks very raggedy all over, mostly on her neck, chest and back. I mean I can pick her up and feathers fall off her.