hi newbie from UK. I have a raised coop for my three bantams, wind wind protection underneath the coop and a rain cover on the top of the run. Food and water in the run with dust bath. What is the best thing to do in winter if it snows? Presumably the grass will stay snow free unless there is a strong wind, but is it worth adding shavings or something to the run floor. Im sure they wont want to stay in the coop all day in the colder months!