I live in North West Montana and am wondering what to do. My chicks are nearly 8 weeks old, fully feathered...but I am so worried about putting them out in their coop! The days are forecast to be in today 51/36 then 39/31 on friday, and then 56/35, 66/41, 65/41, 54/39, 47/31, 55/34, 60/38 etc. Am I safe putting them out with a heat lamp? Am I being over protective? Their big coop isnt done yet, they will be in a small A-Frame, with soil as the floor. It sits inside thier run. Thanks so much for any imput.