I noticed this weekend that one of my barred rocks has a large spot on its waddle. It looks to me like maybe an injury that is now scabbed over. I couldn't get a real good picture this morning because I was by myself and already in my work cloths so I didn't pick her up. Is this most likely a scab or is there some common "ailment" that looks like this that I don't know about. Ive not seen it bleeding so I don't think the others are picking at it.