I've reading a lot of posts here on housing solutions but still have a question. I raised about 80 of them this year in my coop/run. Since then my egg layers have laid claim (pun not necessarily intended) to the coop & run. How would you house 100 or 200 broilers? Coop & run or tractor(s)? I like the idea of a tractor but I live in Minnesota. How much does the colder climate impact meaties in a tractor?