Thanks for the advice!! I do have their heat lamp from when they were in the brooder, I'll hook it up if they seem too cold! And the snacks are a good reminder! I'll remember to give them extra during the cold snap.

Anyone have experience with/advice for chickens with these kinds of temps? They're in an insulated shed with no supplemental heat and have done well so far this winter. The shed was 25 degrees at the lowest. They're all laying hens, dual purpose cold hardy breeds. Water is already on one of those heaters designed to keep the water from freezing and I moved their food inside in anticipation of the cold.

Will they be okay if the temps inside the shed drop some more due to the cold and wind?