My girls were shipped on March 26 to northern ontario. It was minus 15c that morning. They are no problems whatsoever. Shipped from Freys in southern ontario. Yesterday i moved them to a larger brooder. I put 2 boxes together and cut a hole in each. They are loving their new 6 foot larger space. I put the water and feed in the box thats has no heat. That saves alot of mess in the water and food. The water stays clean all day. They are almost 3/4 feathered already. My 5 red sex linked are doing awesome and are so happy.