I am getting ready for my next project, a dust bath. However, before I start, I want to make sure I'm not wasting my time. My coop has a deep litter system of primarily wood chips (4-6 inches deep). Currently, the 10 week old chicks will dig a hole in the wood chips and make their own dust bath. I was thinking about putting a small cement mixer pan in the coop with sand and some DE. But is it necessary, or at least a good idea, given the chickens already make their own dust bathes in the wood chips? Thanks for any feedback.