So I'm trying to figure out a way to keep my chickens a little warmer this winter. We're supposed to have a cold snap tonight and I would really like it if i don't have frozen chicken in my coop (they belong in my freezer). I close my coop door at night this time of year to keep the wind out and warm in but during the day it's open. I was thinking about covering the door with some burlap pieces to keep the wind out. My question is would this work and will my chickens go through it? Have any other ideas? I have no power at my coop so I can't exactly heat it with a light or anything. I currently have about 100 feet of extension cord to keep my water from freezing so that's the only power I have. Anyone have any help for me?