My husband and I will be first time chicken owners soon. We are in the process of designing a coop, loved the idea of a wire floor but we live in SE Wisconsin, cold and snow. Thinking about a coop on wheels so we can roll it into a pole barn for the winter...but I want to know if chickens can handle the cold and snow here or do they need to be get in during the winter. Plan to get Plymouth Rock and Australorp as they seem cold tolerant. We will insulate, wondering if putting a truck bed liner over the wire floor in the winter would keep them warm enough. Thanks in advance for any advice.