My chickens coop (I actually use my garage) is 24° which I feel is not ideal, there is quite a lot of chickens in there (60) will they be okay? I definitely don’t want to put heat lamps up. Also, my other 6 month old chicken ran off this morning which didn’t come back at night time. I know we have at least 5 in. of snow on the ground, with temperatures from 20-23° today. Tonight low is about 7°. Theres a lot of barns where she could be bunkered down, all filled with hay. Should I look for her in the morning? Or will she already be dead from the cold?