First time raising chickens and the little cutties are going on their tenth day. My husband is designing a chicken tractor (and building it sometime soon if he ever wants to eat again). He tells me the tractors don't have floors in them. Is that true or is he trying to get out of some work? I can believe the run being void of a floor, but the house part? Ground freezes in winter in our climate (Maryland), but it's very rare that the lakes freeze hard enough to ice skate. Do the chickens really just hang out on the roosts all the time. Won't they want to rest on the floor too?? And is the ground a suitable resting spot in the winter???