I live in central Ontario with serious winter. First year with 6 hens. The coop is well built and insulated; wired to allow a light and heated waterer. I've been advised not to heat it unless really cold to allow them to adapt. Attached to coop is a totally enclosed run (predator proofed with hardware cloth dug into ground etc) which we plan to wrap with plastic to reduce drafts for when they're outside and prevent snow from blowing in and piling up. From this they could also go to a fenced bigger yard that they are in only when we are there. My question is - the floor of the outside small run is just dirt - should I put litter or chopped straw down or will that get wet and frozen? Also any other ideas from people who live where there is snow.