Trying to convince my husband it is completely reasonable to have two or three backyard hens. The big hold-up now is winter housing. We live in the upper Midwest where it can be below freezing for days / weeks at a time. We had 10 inches of snow last week, and nine more are predicted next week. Is it appropriate / humane to keep chickens outside in such conditions? If necessary to bring them inside, how do we keep them happy while confined? (Husband is not going to go for free-range house chickens!) Thanks for any help!