Dirt mounds are popping up in the yard. Grayish colored, almost BB sized dirt. What would cause this?
My best guess would be earthworms. While we think of them as subterranean animals they commonly come to the surface to either escape overwatering and saturated soils or to migrate, and I have read that quite often when we find the worms squirming over a sidewalk or driveway it is because they chose to go there in an effort to relocate. Unfortunately, once the sun comes out they don't do so well.
Mr. Pest Control
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