After I saw Paul Pisano's post earlier about the scoters, I ran down  
there with my camera, scope, binocs, Sibleys and a bagel.  Naturally  
the ducks were on the far side of the river and it is overcast out  
there so the photos turned out lousy.  But, through the scope the  
ducks were clear enough to make out five female Black Scoters and one  
female Surf Scoter.  The Surf was with the Blacks, but not "with"  
them, if you know what I mean.  Always near, but not really  
associating too much.  The Surf had a  vertical white mark near the  
bill, another one behind her pale eye, and a big pale patch on her nape.

Here are the photos - apologies for the poor quality.  I took about 50  
photos - they all turned out lousy (at 400mm and blown up three times)

http://www.flickr.com/photos/sherseydc/5178753047/

http://www.flickr.com/photos/sherseydc/5179357364/

It was nice to meet Art Drauglis who showed up soon after I did.   
Thanks to Frank Hawkins for finding them in the first place!!!

Cheers,
Steve Hersey
Alexandria, VA