My parent's house sits on the edge of NW Branch Park in the Colesville, MD area. If you're familiar with the area near Kemp Mill Rd and Randolph - they are sort of in that general area. My memory from 2004 is pretty spotty I'd assume. I remember it being a big deal and them going splat on the car windshield while driving - but I'm struggling to remember how prolific (or not) they were in the actual neighborhood. Their house was built in the 60s, and there really hasn't been new construction of homes at all in the past decades. I do seem to remember the noise being so loud it was creepy back then.