I keep all kinds of chickens here. Amazingly ones that were purported to be "cold hardy" ie brahma were wimps. All survived, but the brahma didn't like to go outside, she mostly sat in the pop door and stared at all the other chickens out playing on the ice and snow. The ones that surprised me the most for their hardiness were white leghorns. Every morning those girls were some of the first to run outside, often in the dark. Their combs had a few spots of frostbite, but nothing severe. My teeny tiny banty mutt was usually the next out. I also keep a plethora of turkens.
I also had a moisture issue last year. I keep all my windows and vents all the way open unless it's really snowing hard. Unfortunately my screens clog up easily due to all the dust from the chickens. If I don't keep up with it the litter gets damp and then freezes into a horrible block. Last winter I had a chicken go broody and hatch chicks, but her cage was frozen to the coop floor for months after they hatched.
I also had a moisture issue last year. I keep all my windows and vents all the way open unless it's really snowing hard. Unfortunately my screens clog up easily due to all the dust from the chickens. If I don't keep up with it the litter gets damp and then freezes into a horrible block. Last winter I had a chicken go broody and hatch chicks, but her cage was frozen to the coop floor for months after they hatched.