My DH will be building a coop or tractor here in the next week. By Mid July I will have about 50 laying hens. Which do I need? We are in NE Ohio. I have two large fenced in areas that they will share with our, very gentle alpacas. By the end of summer we will have 3/4-1 acre of additonal fenced pature. They will also be able to free range our 5 acres when DH fences in my garden, which will be w/i 4 weeks. The previous owner free ranged all of her flock (42 hens being the largest flock) w/o issues. Should I have a tractor or coop? I want my chx to be as natural as possible so do I avoid extra heat/light for the mature birds? What about roosting? How should I keep the water from freezing in winter? What type of flooring will be easiest to clean, but also safe for the birds? I'm thinking that there will be a short run or shoot to lead the chickens to which ever pasture they'll be in for that particular day and an additonal door to really free range. I'm not looking to be elaborate or expensive. At this point I just need what will accomplish the job.