Thanks for your responses. Helps give a direction.Any thing in the runs is good for the birds to pick threw. It does several things. Exercise, and meat. DL in runs is a biologic food grounds for healthy microbes to grow. You can't bag that. It is nature at its best. If I had to keep the birds in a run, the run would be my compost pile. I would also use electro net and move them around in small paddocks filled with herbs, kelp, kale and grasses. The reduction cost in feed would pay for the electro net in the first year. The safety of the net would shave off years of stress and worry.