I got home yesterday a little after 5 PM and went out to the coop to collect eggs. Temperature is 10 F with a little sun trying to peek thru the clouds. And where are the 8 + 1 Buff Orpingtons? Huddled in the coop looking at warm Caribbean Cruise brochures? Nope. Scratching around in their run. Their coop is not insulated and no heat is provided. Chicken door to the run is open 24 x 7. Coop windows lean in at the top 4" to provide ventilation. The only artificial light in th coop is 1/2 hour at dawn and another 1/2 hour at dusk.