Bucephala americana Lake Umbagog, Maine. 1889 Maine Sept 6 L. Umbago - Two flocks one of seven, one of two birds, in shallow ponds near the mouth of Cambridge River. They were rather shy rising at about 200 yds as the large flock passed me at about this distance I distinctly heard the humming-top noise of their wings although this was not as loud as it is in winter in Mass. The air was perfectly still at the time, the lake as smooth as glass. I do not remember ever hearing this duck whistle here before. I saw all nine birds distinctly enough to make sure that none were in the full plumage of the adult ♂.