I was just outside doing chores and noticed digging on the outside of the chicken run. I imiadately assumed predator but, when I took a closer look the dirt is thrown into the chicken run and I find no tracks-and we had rain yesterday evening. The digging is since the rain. Wouldn't a predator throw the dirt away from the run as it would be looking toward the run and therefore the dirt would fly the other way? But I would also think it would be hard for the chickens to dig this through the fence. Any ideas?