Richland Homeowner Skeptical, hole found on grounds. What Caused it?

Inquiring minds want to know what made this hole? Do you know? Should this Richland homeowner be concerned? I'm part of a neighborhood group that watches out for one another. I came across this posting and was intrigued as I, too, have seen some of these holes. It almost looks as if it was made by a professional.

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And, just so you know, it's a very cool app, called Nextdoor.

Lots of people responded that it could be bees, someone else replied that it was a hornet's nest. Maybe a gopher, or possibly, ants. I was going for ants since that is what I have encountered recently.

Most people replied that it was bees and wasps. One lady even commented that it was "aliens from a galaxy far, far away." If you know, please let us know. What do you suppose made that deep, deep hole? It's the $64,000 question in Richland.

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