My hens were sitting on 5 eggs for the past 2 weeks atleast. Each day I go out and have 1 less egg than the day before. It disappears. Shell and all. We are now down to 1 egg. Dont know if it has anything to do with the egg eating issue or not but last night I did notice one of the hens has a patch on her back of feathers missing. Had not noticed it before so Im not exactly sure how long that has been going on. Please help!!!