My six hens get 2 - 3 hours a day to range and forage our yard which is about 1/3 acre of lawn and woods. They've done a great job of eating ticks which is a primary reason I got them. They love the grass and other bugs they find. My question: with snow coming, what are they going to do? Will they roam around aimlessly looking for things to eat? What happens when there's two feet of snow on the ground? Are they basically coop bound?