So I have 40 hens and 7 roos that I have out on pasture and they free range within 3/4 of an acre inside electric netting. I have made nest boxes that are hanging about 7 inches lower than the roosts so they don't sleep in them. But I fill them with 3 inches of pine and I can come back that evening to collect eggs and 2/3rds of the pine is gone. Not on the ground or in the hoop house tractor. Gone. So to me they are eating it. What to do? Their set up is like this: http://gallery.me.com/anthonyjames420#100439/DSC_0033&bgcolor=black You can't see the nest boxes because they weren't in yet at this time. But you will get the idea.