I have a lovely fenced yard for my ladies and I love to let them free range, but unfortunately they just CAN NOT stay away from the one thing that they can't have. Under my deck, along the foundation of my house there is some rigid insulation. I have found them under there pecking at it. Initially, I thought it was just exploratory, but I've noticed that there isn't any on the ground. They must be EATING it. I am horrified. I'm doing all I can to shoo them out until I put up some lattice to keep them from going under the deck, but I am worried about the fact that they have already eaten some. Will it pass through them? Will it all get bound up in their crop? Do I need to do anything? They all seem to be acting normal and healthy, but I am still worried. Thanks for any help.