Merry greetings all! I know, no heat in the coop! My question is...how cold is too cold for chickens? This is our first winter with our girls and so far, so good! But we are supposed to get a cold snap over the next few days. I'm a little nervous. They have a good amount of straw and I have made sure there are no drafts, just ventilation up high. The hen house is cozy. The girls roost all together in a row. The outer part of the coop that is not enclosed is wrapped in plastic to keep wind out. I feed them corn before roosting to.e to help keep warm. I just worry I'm missing something. How cold before I have to do something different? Thanks!