Hello, I live in Northern MN. It can get down to 40 below, This will be my 1st year Keeping Runners, and plan on Geese in spring We have decided to use a mix of straw, and Wood shavings inside of coop, for floor. We have a 10x8 coop, I'm having more pit run brought out to put in and around area because our yard becomes a Clay mess in spring and want to keep as dry as possible in, and close to coop. Don't think deep litter method Will work for us. I have found many on the web that talk about using straw, pros/cons but no one has said "How much" they go through. I want to load up for winter while we can, as we live far out, and need to get it while price is down. It will be stored in dry building. I plan to clean out coop reg. and keep close eye on moisture. Anyone Here Raise Ducks, Geese in Cold Climate, Any suggestions, on this, to heat or not to, (We planned to try a heat panel, and heated water bucket) would be greatly appreciated!