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Sept., ?9o6 I BIRDS OBSERVED IN THE KRENITZIN ISLANDS, ALASKA H 5 not rocky it is covered with tundra or with long grass. Willows, the only trees, are of a very stunted type being for the most part prostrate and buried in the tundra. On Unalaska there are occasional clumps of willows which have attained the dig- nity of shrubs. With such conditions it is not surprising to find the land birds poorly represented in species. It is generally recognized that arctic animals and plants make up in individuals what they lack in number of species and the birds of the Krenitzin Islands are no exception. The Sandwich sparrow swarms on all the islands and the leucosticte and song sparrow are not far behind; petrels and shearwaters appear in myriads--but these will be found discussed beyond in their respective places. The summer climate of Norton Sound and of the Aleutians is delightful, and once having spent a summer in Alaska one welcomes the oppor- tunity to go again. I take pleasure in acknowledging my obligations to the following gentlemen: To Captain J. J. Gilbert of the ]>athfinder for affording me every possible chance to get ashore, to Mr. G. R. Putnam chief of the Philippine Coast and Geodetic Sur- vey for use of chart, to Mr. R. Ridgway for notes on a specimen of petrel, to Dr. Charles W. Richmond for identifying five species of birds, and to Mr. J. Grin- nell for revising the nomenclature of this paper. Lunda cirrhata Pallas. Tufted Puffin. During the month of June puffins were otten seen in the water about the different islands and most of them seemed to be of the tufted kind. June 29 eggs were found on Unalga and July 4 fresh eggs were taken on an islet in Beaver Inlet; July 30 they were found nesting in burrows on the face and at the top of a cliff on Egg Island; they were also nesting in considerable numbers on Ugamak, Aftgust ?3. Fratercula corniculata (Namnann). Horned Puffin. Specimens of the horned puffin were seen, but they were less abundant than the preceding species. One was noted in English Bay on May 29 and fresh eggs were found on Round Island in Beaver Inlet on July 4; June 24 a few were seen along the Pacific side of Unalaska; August ?3 the species was noted on Ugamak; young birds were seen on an islet in Akun Strait on August 30, and a single individual was noted in Akutan Bay September x. Simorhynchus pygrna?us (Gmelin). Whiskered Auklet. ?A male from Dutch Harbor, June 8, is in worn adult plumage, the remiges particularly being very ragged; the white patch on lores is poorly marked and its connection with the long plumes over the eye is but indicated. This bird flew into the ship's dingey and was captured by one of the sailors. A fully grown male from Easy Cove, Akun, appears to have taken on the winter dress; the white lines from loral patch thru eye and below cheek are indicated but none of the long feathers re- main. This specimen flew aboard ship during a fog on the night of August 2?. A pair in fall plumage were taken August ?9 in Akutan Harbor. Synthliborhamphus antiquus (Gmelin). Ancient Murrelet. One adult male in slightly worn plumage was killed August ?4 at the western side of Unimak. This individual was swimming about the ship when observed and was killed with a boat hook. Cepphus columba Pallas. Pigeon Guillemot. The pigeon guillemot was seen in English Bay on May 28; a number of young birds were seen in the pass outside English Bay on June t2; about 2o were observed about Unalga on June 29; a number seen and one killed about the kelp beds off Akun, on July 28; on July 30 one was shot on Egg Island; in August and September the species was noted about Ugamak, Aektok and Akutan. Uria Ionavia arra (Pallas). Pallas Murre.