My little chickens only 8 weeks old or so, have been in their coop for 3 weeks today. Each morning I open the door for them, each night I go to close it. To my surprise it has been closed every night for the last week. They go in and out all day and do not knock it closed. No human is going in there except me. The door is not latched but is swung closed. I have it blocked open with a 1x2 by the hinges and it is knocked out of the way every night. They stand on the roost and look at me like "what it is bed time so we closed it". I really need to put the video camera out there.