It’s annoying to discover unsightly holes, mounds, or tunnels in your lawn or garden beds. But figuring out what’s excavating without your permission isn’t straightforward. “There’s some sleuthing ...

When you think of garden pests, raccoons probably rank high on the list—those masked little bandits are famous for raiding bird feeders, knocking over compost bins, and digging through garden beds.

An expert weighs in.