Out on the Potomac River between Riley's and Violette's locks early this 
afternoon were:

Horned Grebes - 3
Green-winged teal
Bufflehead
Hooded Merganser
Bonaparte's Gulls - 9
Ring-billed Gull - 1
Great Blue Heron

The Bonaparte's seemed to be feeding while sitting on the water just 
above the rapids at Violette's Lock.  This is first time I have seen 
them in nonbreeding plumage.  Their movements are almost phalarope-ish.  
Not a spin, but sorta of a quick pivot.  Interesting to watch.

On my way back to home stopped at Lake Placid in Gaithersburg:

Canada Geese
Mallards
Ring-necked Ducks - about 75 (largest number I've seen on
this small body of water over past 2 years)
Common Goldeneye - 2 females
American Coot

Happy Thanksgiving to all,

Andy Martin
Gaithersburg, MD