Wingfall Harbor, Admiralty Island, Alaska. April 17 to May 19 1907. BIRDS. Frank Stephens. Loon. Gavia immer. Common. One shot. Red-throated Loon. Gavia Lume. Seen but not taken. Marbled Murrelet. Brachyramphus marmoratus. Rather common. Mostly seen in pairs. Very good divers. Several taken. Pigeon Guillemot. Cepphus columba. Rather common. One taken. Seems to feed principally on the smaller animals picked up on the surface. California Murre. Uria troilla californica. One taken. Others seen. Glaucous-winged Gull. Larus glaucusans. Rather common. Common. Probably a few L. canus Short-billed Gull. Larus brachyrynchus. Rather common. Bonaparte Gull. Larus philadelphia. Appeared about May first and soon became common. Immature birds came a few days later. The notes are a repetition of a harsh "caak-caak". Palagic Cormorant. Phalacrocorax pelagicus. Not very common. Frequent the rocky islets that are covered at high tide. The female taken would not have laid for some time. She lacked the white flank patches and white back filaments but had a few small white feathers in those places. Probably the only merganser taken or positively recognized. American Merganser. Mergus americanus. Rather common, but wary. This another species occurred, but we did not positively recognize any. Malard Duck. Anas boschas. Seen occasionally. One shot. Scapa Duck. Aythya marila. Rather more common than the mallards. American Golden-ava Duck. Clangula americana. Not common. Buffalo-head Duck. Chartistotita albocilla. Rather common. Old-squaw Duck. Harelda humeralis. Common. Harlequin Duck. Histrionicus histrionicus. Not very common. Shot.