I was outside before, mixing up some baby bird formula and it felt pretty chilly. It’s 12C (53.6F) and whilst that is probably balmy compared to @Kris5902 ’s -36C, I still wouldn’t want to be out overnight in it. I brought the bigger dog crate in and got some more formula into Lottie. She and Snowy are cuddled up and once the cats go to bed, I’ll open the bathroom door so they get the warmth of the rest of the house.Yes I was worried about my silkies but they were ok, it helped that my barn is good and solid. And their hen house is insulated.