When my DH built the outdoor run, he didn't believe when I said it was too small and all that nice sod he planted for the chickens would be torn up in a matter of weeks. Well, it's all mud now, no grass is left, and we don't have the immediate space to create another run. So I was wondering what kind of "flooring" I could put on top of the muddy run so that they're not constantly walking/eating in their poop and getting dirty etc. I was thinking of throwing down a layer of hay because it's lofty (for a while anyway) and it won't hurt them if they eat it. Thoughts?