NORTH AMERICAN GULLS AND THEIR ALLIES. 9 



or young. Some dates of fall arrival are: Peach Bottom, Lancaster 

 County, Pa., July 4, 1869 (Barnard); near Lynn, Mass., July 5, 1889 

 (Tufts); Little Gull Island, Long Island, N. Y., common August 

 6-16, 1888 (Dutcher); Bonne Bay, Newfoundland, August 16, 1877 

 (Kumlien) ; mouth of the Churchill River, Keewatin, several July 21, 

 1900 (Preble); Cape Blossom, Alaska, July 1, 1899 (Grinnell); Nome, 

 Alaska, July 14, 1908 (Thayer); Kodiak, Alaska, August 15, 1888 

 (Ridgway); Monterey, Cal., August 1, 1892, July 31, 1894 (Loomis); 

 Callao, Peru, November 17, 1883 (Macf arlane) . 



Some late fall records are: Montauk, N. Y., October 30, 1889 

 (Scott); Ossining, N. Y., October 18, 1877 (Fisher); Block Island, 

 R. I., October 11, 1895 (Howe and Sturtevant) ; Long Beach, N. J., 

 December, 1876 (Scott); near Halifax, Nova Scotia, about October 

 4, 1869 (Gilpin); Chicago, 111., October 9, 1876 (Nelson); Fort Simp- 

 son, Mackenzie, October 16, 1860 (Ross); Point Barrow, Alaska, Sep- 

 tember 20, 1897 (Stone); Cape Irkaipij, northeastern Siberia, 

 September 5, 1911 (Thayer and Bangs); near Victoria, British 

 Columbia, October 22, 1898 (Kermode); Monterey, Cal., November 

 11, 1S96 (Loomis); and the Galapagos, December 15, 1897 (Roths- 

 child and Hartcrt). 



PARASITIC JAEGER. Stcrcorarius parasiticus (LiKNiEUS). 



Range. — Both hemispheres, from the Arctic islands south to Aus- 

 tralia, southern Africa, and Brazil. 



Breeding range. — The parasitic jasger breeds on many of the Arctic 

 islands of the Eastern Hemisphere and south to Scotland, and from 

 Point Barrow, Banks Land (Bay of Mercy), Melville Island (Winter 

 Harbor), and Godhavn, Greenland, south to Kamchatka, (Bering 

 Island) Near Islands (Agattu), Aleutians (Kiska and Amchitka), 

 Kodiak Island, and Glacier Bay, Alaska, Great Slave Lake (Stone 

 Island and the eastern end of the lake), to near York Factory, 

 Keewatin, and to Hudson Strait. 



Winter range. — Winter records for the parasitic jseger in the Western 

 Hemisphere are so rare as to suggest the probability that the species 

 does not regularly occur at that season along the coasts of either North 

 or South America. It was taken both December 4 and June 20 at 

 Rio Janeiro, Brazil (Saunders), but of course the June bird was an 

 accidental straggler, unless this is really a mistake in labeling for 

 January. A summer bird also was taken on Barbados July 10, 

 1888 (Feilden). These three seem to be the only certain records at 

 any season of the year for South America and the West Indies, and 

 there seems to be no record at any time of the year for Central 

 America and Mexico. There are several December records for the 

 United States, but these seem to represent late fall migrants rather 

 than wintering birds. In the Eastern Hemisphere the species winters 

 3673°— Bull. 292—15 2 



