A Dolphin Flies By

As I was about ready to get in the car to return home, I heard the unmistakable sound of a helicopter approaching.

 I was able to switch lenses in just enough time to get this shot.  It is an HH-65 Dolphin helicopter belonging to the U.S. Coast Guard and I think it operates out of Selfridge Air National Guard base.

I'm not sure what it was looking for but it was in a hurry.