I have an A-frame tractor, with roosting area on top, along with a separate "nesting box" area. I was thinking I'd put straw in the nesting box. But what should I use in the roosting area? When the ramp is lowered, there is a hole in the "floor," so I assume pine shavings will fall down onto the grass. Also, deep litter method is impossible cuz the floor to ceiling dimensions are small as it is. I'm planning on moving the tractor every day or two. What have others done? Thanks!