Clangula clangula americana. Lake Umbagog, Maine. 1897. guttural tones. She alighted about 200 yards off and after May 24. swimming about for awhile flew still further away. Watrous this morning saw five Whistlers together in the water not far from this nest. Four seemed to be females, the fifth being a fine old drake. I should add that when the female flew from the hole this afternoon her wings whistled audibly but with a hollow tone like that of a humming top. According to my ex- perience it is unusual for a Whistler to sit as closely as did this bird. Ordinarily they leave the nest before you can have run the boat alongside the stub and I never before known one to fail to start at the first thump on the foot of the stub. This nest had 12 eggs; three were fresh, the others rep- resenting every stage of incubation up to about 7 or 8 days.