Thanks for your reply. I'm sure they can handle our winters fairly easy. I purchased a large hard wire coop. Pretty open [thinking of winter] Thought I would put up plywood over the sides, but the bottom [hardwire] would be open. The top is covered. Sound ok? I had chickens in northern Minn. [very cold winters] they did ok in their play house coop.
I have two coops that are completely open on the fronts and half of the sides, never close it up, and my chickens do fine all winter. Lots of air is good for them as long as they have a dry place to roost at night. Dampness is what's hard on then. You may have to occasionally thaw out their water, but winters are pretty mild around here and no trouble at all for the chickens.