Re Millie - I have a hen who has no feet, from frostbite.  She gets around on the ground fine but unable to perch.  I use help on the coop floor, and she has her own corner made up under the drop board.  As others have suggested, I use radiant heat plates when the temp really drops that 1 or 2 weeks of the year, and she, as well as everyone else,  stays comfy.
	
		
			
		
		
	
				
			
	