What made the mounds of dirt in my flowerbeds and lawn?

Question: In the flowerbeds, under the porch and along the edge of the lawn, there are piles of loose dirt that some type of bug left behind as it’s burrowed into the dirt. These little piles or mounds of dirt are everywhere. I’ve also noticed that we have a lot of hairy caterpillars, which we didn’t have until just recently. I don’t know if one thing has anything to do with the other. Do you know what these could possibly be? I live in Kansas.

Answer: The possibilities are earthworms and sometimes grubs (June Beetle, Japanese Beetle, and other beetle grubs). Skunks looking for grubs can also make them. Those caterpillars are not involved.