I live in southeastern NC, where I can't ever recall winter temps dropping below about 15 degrees. Forecast is calling for temps as low as 0 to -5 (not accounting for wind chills) later this week.
I keep my flock on fenced-in pasture, with a coop that's made out of a 10x10 steel dog kennel (can be moved w/ 2 strong people), covered with tarps over the roof & 2 sides. In the winter we cover all 4 sides, including the door, which gets shut tight overnight. I may sound like a southern wimp compared to some of you, but this is record-breaking cold for us. I've stuffed the coop with extra straw, wrapped the roost bars in foam padding so their feet don't freeze, and triple-checked the tarps for tears or drafts.
What do you all think? Is this going to be enough for them on a zero-degree night? I've kept chickens for a long time, but don't have experience w/ this kind of cold.
Fire away; I don't upset easily; just looking for any useful information/suggestions.