Does anyone have Muscovies in a typical winter zone- Canada, Minnesota, Wisconsin, Maine, Vermont? 'm thinking of getting a few and I'm wondering if a former horse stall with a pop door and ramp would be adequate when they come in at night. I would like to have them both as pets and for fly control, they would have access to about 4 acres including two small ponds. In winter I definitely want them inside the barn except when weather permits. I guess my question is- how tolerant are they in winter climates?