We have a tiny coop/run, so we just built a portable run/tractor (with no henhouse -- just a pen) so they could have some space around the yard. (They really can't be out and about unless we're watching them -- we have coons and neighbor dogs.) Question: If I put the door/entrance on the side of the portable run, can I train them to go in there? They're still getting used to us (we got them a week ago), so picking them up and moving them in is no quick task. Any suggestions?