I leave the pop door open to their run at night. My run is 1x2 welded wire, trenched down 16/18 inches deep all around. There is a solid 3-tab roof on my run also. We poured a concrete slab under the door to the run to prevent digging. Everything eats chicken!Coop question .... since our winters are so mild ... does anyone leave their pop doors open so the chickens can just roam from the hen house to the run at their free will? Or should I plan on locking them in at night? I live in a neighborhood ... not many predators ... and their run will be very secure.
I get a lot colder than most of you and I don't close the pop door. I do use 204m greenhouse plastic to wrap the runs on my coops. They are considerably warmer with the plastic and cuts out the drafts! Last winter we were down in the single digits for a week.

