Anas obscura. Lake Umbagog,. Maine. 1897 Watrous spent the forenoon along the eastern shores of May 24. the channel between Great Island and the Tidswell place and among the islands S.E. of the Narrows. He found a Black Duck's nest near the south-east extremity of Bear Island. He took me to the nest in the afternoon. Here is a condensed summary of the chief points of in- terest respecting the three nests of the Black Duck that we have found thus far. Nest found May 22. Nest, 13 eggs, on top of knoll at E. end of small densely-wooded (chiefly with spruces, balsams and hemlocks) island at E. end of Great Island, north channel. At base of hemlock trunk near edge of bed of rather stunted and sparse yew by which both nest and eggs were well covered. Nest of leaves and down 11 in. across by 3 1/2 in. deep. When bird found May 22 the sitting rose at about 12 or 15 feet. After we had made her repeated visits she became much shyer, often rising as we were landing (at 20 yds. and out of her sight). She always rose straight up through the trees to a height of 30 or 40 feet avoiding the branches as easily as a Partridge and quacking loudly. Usually she flew directly from the nest but once she ran a few yards first. We never found any of the eggs covered (perhaps this bird does not cover them when suddenly flushed). On the evening of the 21st and on the