Clangula clangula americana. Lake Umbagog, Maine. 1896. On my way across the Lake I saw four Whistlers, two old birds, the other two young not more than half grown. Unlike Aug.13. the Black and Wood Ducks which keep together in broods until they leave for the south the young Whistlers apparently separate long before they are large enough to fly and probably as soon as they are able to get their own living. They utter a low queer, queer almost exactly like that of the Black Duck (I have always supposed that this note is peculiar to the young drake of the latter species but I hear it as late as October after the Black Ducks are fully grown) and having the same peculiar shrill yet husky treble tone. The little fellows which I saw to-day were expert divers and had already learned the art of doubling back when hard pressed but they were so tame that I could have shot them easily enough. They feed both by,diving and by skimming the surface of the water with half opened bills. During the day they work well in shore into the grassy coves and up the river but before sunset they paddle out into the Lake a little way and spend the night 200 or 300 yards off the mouth of the river. I have seen no old birds in this neighborhood after sunset and suspect that, in accordance with their old-time custom, they pass the night at the head of the Lake but if so I have not as yet seen them going or returning.