Watch for four eiders -- initially identified as  King Eiders 
from head and bill detail -- for a match, see flight images  
of female King Eiders in the Sibley Guide to Birds.

The eiders  drifted into view from behind cedars to my left at 7:55,
along with two  White-winged Scoters and three Goldeneyes.
Eiders must have have been present  for the entire half-hour that
I scanned the lake; and have been the "decoys"  that drew in the
scoters which had flown in 15-20 minutes earlier.  Both  the
scoters and goldeneyes swam and flew north some more, then 
flew  south.  The four eiders, still glued closely together, soon flew 
a bit  farther out into the lake, but were gone (south?) by the time
I got back from  the house with a camera and lens extension.

West Shore of Grand  Isle  7:25-08:00
2 Ring-necked Ducks  (pair)
1 Red-breasted  Merganser (female/immature)
5 Common Goldeneyes  (2 males, 3  females)
4 King Eiders (female/immature - a TIGHTLY-KNIT family)
2  White-winged Scoters (female/immature)
Many Common Loons on the water.
A  moderate number of Bonaparte's  Gulls.

09:45-10:00    
1 small boat from UVM southbound.
2  different young White-winged Scoters on the water.
~10 snow buntings!  bouncing through the air way offshore.
buntings on  time, even though the weather is slow.    
Dave Hoag, Grand  Isle