There are FOUR!!!!  I watched all 4 plus their little Snowy friend flying south 
down the Patuxent River about 7:45 to 7:50 (I didn't have my watch with me).  
For those interested, (if they decide to make this a nightly event) they would 
be quite visible from the canoe camp floating dock just north of Selby Landing 
in Patuxent River Park, and probably just a little less visible from the landing 
itself.

Danny Bystrak
Bristol, AA Co