I've obsessively read all there is in these forums about the cold, coop ventilation, water freezing, frostbite, everything about precautions to take with the cold. I know I'm being neurotic but it's going to be 12F where I am next week and thus far my two buff orps (both about six months old) have only been through cold down to 25F. Even though most of the things I've read are reassuring about their hardiness, I know myself and I know i'll be getting up during the night to check on them. My question is what to look for when I check on them to see if they're okay/reassure myself. If they were too cold, would they be shivering or something? Would they be awake or can they freeze to death in their sleep? I'm new to this so sorry if theses are stupid questions. Can anyone help with symptoms to look for? And if I see any of these, I think my plan would be to bring them inside. Would the warmth of the house too shocking for their system and they wouldn't' be able to re-acclimate to temps in the twenties? Thanks for any help!