My run is very muddy right now, we've had a number of storms come through, all of them making the run even more wet and less accesible for my chickens. I wondering what the best material (long lasting, works well, etc.) would be to put in the muddy run that will be able to drain fairly easily and will hopefully not break down too quickly. Also something that is not too expensive. Thanks! Also, I forgot to add at the beginning that the "run" I am talking about is not covered. My chickens have a VEEEERY small run that is covered, but they go nuts if I keep them shut in their immediate run the entire day. I usually leave their coop door open so they have acess to a larger area that is netted in with pvc pipes on the top and sides, so rain still gets in. It is very muddy so I am looking for something to help absorb the water and provide better footing. I use pine shavings in their small covered run.