What Kind of Bugs Are in My Yard?

Question

I have noticed that there are areas on my lawn where the grass has disappeared, but the clover remains, and there are little round holes probably around the size of the tip of your pinky finger. I thought maybe ants, but I never see any activity near the holes. I thought it was much too early for grubs. What could they be? Any clue? I live in Plymouth, MA.

Answer 1

It could be a few things. One possibility is that it is earthworms or birds searching for earthworms. Another possibility is that they are entrances to bee or wasp nests.