I use pine shavings on the coop floor and straw in the nest boxes. I find that the pine shavings are very easy to deal with and clean out. I can turn them over and add a little fresh when it seems to need it. Cleaning time is easy. I shovel it out into a wheelbarrel and dump it. Mine have never eaten the shavings that I've seen. I feel like in my little coop the straw/hay would be messier and harder to observe the droppings (which I do from time to time to make sure all looks normal).