Answer: My first guess would be that the culprit is a skunk. Skunks are nocturnal and will dig holes in search of insects and grubs. The holes are often small enough that they do not cause serious damage to the lawn or plantings so there is usually no need to control them. You may want to examine your lawn for signs of a grub infestation. By controlling the grub population, you'll discourage skunks from digging in your yard.
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