On the weekends, DH works with a friend who has his own Tree business, so we have access to wood chips (free). My question is: After drying out the wood chips, would they be okay to use for bedding with new chicks & in the coop with the older chickens? The chips would be a mixture of different kinds of woods, with the exclusion of cedar. Trees like scrub oaks, pine, maple, poplar, ect. & other brush. I'm pretty sure we would be okay using them, but would like to get other opinions. Thanks!