Greetings from frosty Michigan. I gained a great deal of winter confidence by having my coop close enough to run an extension cord. If you could have yours wired, all the better. I know there are risks associated with my extension cord, but it did allow me to run a heat lamp on a timer on the sub-zero nights. I would also recommend choosing winter-hardy breeds.
Take heart: People have have chickens in cold climates for a very long time. If you have a solid shelter for them, they should be fine.
Take heart: People have have chickens in cold climates for a very long time. If you have a solid shelter for them, they should be fine.