Because of the way the inside of the coop is laid out, I have to figure out a way to make a covered tunnel or tube of some sort. The pop-door is on the north, but the run is on the east. The total distance is about 8 feet. I just want to be sure that the chickens stay enclosed and protected out to the run and that they can go in and out themselves. We have corn fields and coyotes all around us, so I can't let them roam. Anyone out there build a tunnel for their birds? I'd love to see a picture!