I’m not leaving a bird on a cord with -10 windchills. I just can’t do it. Not to mention you run the risk of them getting frostbite on their feet.
Run the risk of both in domes aswell and we both know most don't wrap pens. Heck some don't even provide a roof.... That being said I don't wrap mine, but I'll dig em out all the same and do what's necessary.