Yesterday I was turning the sand in my coop and run over for aeration, and for leveling it off as it got compacted (it's builder's sand as it my only option around here). I almost passed out due to the nitrogen, i got dizzy, my arms were tingling...bad stuff. I had to walk it off for some fresh air. I wanted to add wood chips for two reasons : loosen the sand some and provide some odor absorbing, esp with cedar chips. BUT I thought maybe cedar wouldn't be good for them to have in case they peck at it since it has evergreen compounds. thoughts?