The past couple days I've noticed my chicks eating their bedding. We use wood shavings from a friend of our because he makes different wood furnitures. Is this safe for them to eat? I know that it is not cedar, the guy doesn't use cedar in any of his furnitures. I tried sprinkling some ash on them. If it tastes bad, they won't eat it right? They have access to an 8x12 run and almost every day I let them out to freerange the yard and gardens. Thank you for your replies.