Mr. & Mrs. Bufflehead Duck

Or, Mr. & Mrs. Bucephala albeola.  I like Bufflehead better.  They spent a lazy afternoon floating along with the cottonwood fuzz.  I don't believe I've seen them before.  They're described in my bird ID book as a small, plump diving duck.  These two were quite a long way off and my camera couldn't quite get them in focus at that distance, but they were pretty much the most interesting things that floated by today unless you consider the folks I put in Extras.