We spent most of the afternoon around the lake in Black Hills today.  First, 
the pair of bald eagles were perched on the dead tree by RT 121 overlook for 
a long while.  
At the boat ramp we saw a single male Northern Shoveler, some Ruddys, 
Buffleheads and Mallards and a female Kingfisher, as well as an immature Great 
Blue Heron.  A fair number of turtles were out.
Other than the eagles, there wasn't much to see on the main lake from RT 
121.  There was a pair of swans on the opposite side, although at too great a 
distance to be sure what they were -- probably Tundra?  From the road, a 
few Bufflehead and Ruddys were visible.  
We went around to Ten Mile Creek and walked into the back end of the lake; 
met someone who had seen the immature eagle.  There were a large number 
of American Black ducks, 3 or 4 pair of Hooded Mergansers, 2 or 3 pair of 
American Widgeon, maybe 2 dozen Canvasbacks, a large group of RingNecks, 
another large number of Bufflehead, and flotillas of Coots.  Also, heard a 
Pileated Woodpecker and at least one Kingfisher.