I have just finished building my girls their new coop. They wouldn't roost in their old coop, I just figured it was a space issue. The new coop (see pictures) has plenty of room for all of them, and plenty of roosting space. For the first 4 days they roosted and loved it. I had to keep them locked up until I could remove the old coop as they kept trying to get in the old coop and refused to return to the new coop. I have an auto-chicken door and they all go home to the new coop without issue; HOWEVER, as of a week ago, none of them will use the roosting bars, they all huddle near the auto-door and just sleep in the bedding. I don't know what changed other than not having them locked up all day. I don't know whether I should be concerned or just let it go. Any thoughts?