We are planning to use sand when ours goes up this weekend. Lots of people on here use it and they explain it so well. They use it for various reasons, and they love it. So who am I to quibble? Lots of threads on here about the benefits of using sand....just type in "sand" in the search and grab something to drink - lots of good reading there.What can I use as a chicken run bedding, bark, pebbles or sand. Gets muddy in their. Any advise would be very helpful.