I have a hen, Lucy. She is not old but she is the oldest one I have. She is a 1 1/2 years BO. For the last three nights she has been sitting in the poop door her butt inside and her head outsude. I have tried to shut the door and she just sits there with it resting on her back. Any one have any idea what might be going on? She does not seem too happy about it when I push her in and will even try to insert herself back in there before I can get to the rope to shut the door.