60 BULLETIN 292, U. S. DEPARTMENT OF AGRICULTURE. 



During migration Bonaparte's gull has wandered north to the mouth 

 of the Kowak River, May 18, 1899 (Grinneil) ; it was taken on Laysan 

 Island, of the Hawaiian Group, December 27, 1912 (Willett); once on 

 Long Island, in the Bahamas, October 8, 1876 (Moore); in Bermuda, 

 January 27 and December 15, 1849, February 24, 1850, and January, 

 1876 (Reid) ; and has been recorded at various places in Europe eleven 

 times as an accidental visitant. 



Spring migration. — The average date of arrival at Washington, 

 D. C, is March 30, earliest March 25, 1881; Erie, Pa., average April 



20, earliest April 13, 1900; Branch/port, N. Y., average April 21, 

 earliest April 17, 1905; North River, Prince Edward Island, average 

 May 21, earliest May 10, 1887; Godbout, Quebec, April 27, 1888 

 (Comeau); Chicago, 111., average April 14, earliest April 6, 1903 — also 

 a few in winter, December 11, 1906, January 1, 1907, and Febru- 

 ary 4, 1909; Oberlin, Ohio, average April 16, earliest April 8, 1907, 

 and a straggler or wintering bird February 8, 1909; Ann Arbor, 

 Mich., average April 19, earliest April 16, 1911; Keokuk, Iowa, aver- 

 age March 29, earliest March 28, 1895; eastern Kansas, average April 



21, earliest April 7, 1890; Madison, Wis., average April 30, earliest 

 April 22, 1904; Minneapolis, Minn., average May 1, earliest April 1, 

 1882; southern Manitoba, average April 24, earliest April 20, 1905; 

 Indian Head, Saskatchewan, April 27, 1904 (Lang) ; Osier, Saskatche- 

 wan, May 2, 1893 (Colt); near Fort Resolution, Mackenzie, average 

 May 14, earliest May 9, 1904; Fort Simpson, Mackenzie, May 22, 

 1860, May 12, 1904; Comox, British Columbia, April 11, 1904; Bur- 

 rard Inlet, British Columbia, April 13, 1889; and Okanogan Landing, 

 British Columbia, average May 1, earliest April 25, 1907. 



The latest date at which Bonaparte's gull was noted at Coronado, 

 Fla., was April 9 (Longstreet) ; St. Joseph, Fla., April 6, 1886 (Evcr- 

 mann); Frogmore, S. C, May 1, 1885 (Hoxie); Charleston, S. C, 

 May 15, 1909 (Weston); Fort Macon, N. O, May 3, 1869 (Coues); 

 Washington, D. C, average May 1, latest May 30, 1884; Erie, Pa., 

 May 15, 1901, and May 25, 1895; Rochester, N. Y., June 8, 1902 

 (Eaton); Ithaca, N. Y., June 14, 1908 (Reed and Wright); near 

 Newport, R. L, May 22, 1902 (King) ; Woods Hole, Mass., June 3, 1891 

 (Edwards); Monomoy, Mass., June 9, 1SS6 (Cahoon); Penobscot Bay, 

 Me., to June 20 (Knight); New Orleans, La., March 25, 1S94 (Beyer) ; 

 Chicago, 111., average May 17, latest May 30, 1908; Oberlin, Ohio, 

 average May 20, latest May 31, 1897; Ottawa, Ontario, June 9, 1885 

 (White) ; and at Monterey, CaL, rare after May 18, latest June 2 1897 

 (Loomis). 



Eggs were taken at Fort Yukon, Alaska, June 16, 1861 (Kcnni- 

 cott) ; June 7, 1862 (Dall) ; and at Fort Anderson, Mackenzie, June 6, 

 1862, and June 16, 1863 (MacFarlane). Downy young were taken at 

 Hot Springs, Atlin, British Columbia, July 3, 1914 (Anderson). 



