Earlier I mentioned a bunch of mounds popping up along the edge by the street. ONLY by the edge by the street. I then decided to get a shovel and take a peak. Only creature I found were a couple (5 at most) tiny looking earthworms. Can these be causing this mess?! I've always had them but were never really a problem once the Bermuda starts growing. Usually an issue during spring and fall. Anyone have a clue?