I've been skimming through some threads and there was one I found about cedarwood being terrible for chickens and animals in general. I feel bad using it once in a smaller coop, but we didn't like it because how thick and rough the shavings were anyway and only used one large bag of it. We use pine, but I've recently heard that wasn't great, either, but better than cedar. We mainly use pine and have been for about a year, but I don't care for that California Prop 65 warning or whatever on the bag and my husband doesn't deal with the cleaning because it bothers his breathing - understandable. I've come across like 40lbs of corn cob horse bedding on TSC's website for like $10. Doesn't sound bad, but is it suitable for chickens? Does it help keep odors down and such? Considering making a switch. I looked into Aspen as well, but it is a bit more expensive (not too bad with 4 chickens, but later if we get quite a few more, the cost may add up).