Ok it is the chickens first year in snow. What do I need to do? I am going to put a tarp on the top of their run, so that the snow won't fall in. I will also have a water heater for the water. Anything else to let them have a happy winter? What about their feet? Do they get frost bite? In a book It said to put vasaline on there comb so they don't get frostbite, Is that true?! What do you guys do?