One more, out of respect for their hateful diligence. After they were buried in the garbage can, I came back and looked at the hole. Wow, they excavated this spherical cavity, probably building as they went, enlarging the hole as the nest grew and compressed the working area between the surface of the nest and the dirt wall. Look at the spot on the bottom of the hole at about the 9:30 position. That's the entrance to the burrow. It's about the diameter of a golf ball and it is about a foot long to the surface. Very impressive. Such a beautiful ruin.