642 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Young. — Pileum and sides of head (except forehead and lores), 

 back and scapulars grajnsh brown, the longer scapulars margined 

 terminally with pale grayish buff; wing-coverts gray, more or less 

 tinged with brown; secondaries dusky edged with pale gray and 

 broadly tipped with white; primaries dusky, the proximal ones more 

 grajdsh, all rather broadly tipped with white; tail pale gray or grayish 

 white with a broad subterminal band of blackish; central portion of 

 rump pale gray, the lateral and posterior portions, together with 

 upper tail-coverts and entire under parts, lores, forehead, and eye- 

 lids white; bill brownish, the tip dusky; legs and feet brownish (in 

 dried skins). 



Adult wale.— Wing, 280-295 (289.6); tail, 97-109 (103.9); exposed 

 culmen, 30-34 (32.6); tarsus, 38-42.5 (40.8); middle toe, 31.5-33 

 (32.4).« 



Adult female.— Wing, 270-293 (282); tail, 94-105 (99.7); exposed 

 culmen, 30-34.5 (32.5); tarsus, 39-41 (39.9); middle toe, 31.5-34 

 .(32.2)." 



Breeding in middle districts of the Uiyted States and Canada, 

 between the Mississippi River and Rocky Mountains, from Iowa 

 (formerly. Spirit Lake, in 1890 to 1893) and South Dakota (Brook- 

 ings; Petrodie; Fort Sisseton) northward through North Dakota 

 (Turtle Mountain; Devils Lake), Minnesota (Becker County; Heron 

 Lake; Marsh Lake) and Manitoba (Saskatchewan River; Red River 

 Valley; Lake Winnipegoosis; Lake Manitoba; Selkirk; Winnipeg) to 

 Saskatchewan (Quill Lake; Lake of the Narrows; near Crane Lake; 

 Lake Winnipegoosis; Cumberland House?; Osier?; near Edmonton?) 

 and Alberta (Many Island Lake; Flagstaff), migrants or stragglers 

 occurring, casually or accidentally, in Keewatin (Hayes River), Onta- 

 rio (Hamilton, April, Oct.), Pennsjdvania (near Philadelphia, Oct. 22, 

 1911), Virginia (Blacksburg, Oct. 24, 1898), Ohio (Licking Reserve, 

 Oct. 15, 1906), Michigan (near Holland, April 28, 1897), Colorado 

 (Lovcland; near Denver), Utah (Great Salt Lake, June 2, 1902, and 

 in 1906), and CaUfornia (Hyperion, Los Angeles County, Nov. 22, 

 1913, Oct. 17, 1914, Nov. 24, 1914); southward during migration 

 through Wisconsin (Milwaukee, 1 specimen, in 1850; Mendota, April 

 23, 1911; mouth of Fox River, Oct. 22, 1884; West Depere, Oct. 22, 

 1884; Lake Koshkonong, Sept. to Oct. 29, 1871), lUinois (Lake 

 Michigan, near Chicago; Liter, April 21, 1882; Warsaw, May, 1875), 

 Iowa (Keokuk, April 6, 1902; Wall Lake, Apr. 10 to June 27, 1900), 

 Nebraska (Lincoln, Apr. 10, 1899, Nov. 17, 1900; Alda, Apr. 3, 1884; 

 Badger, Mar. 30 to Apr., and Nov. 12, 1899), Kansas (Onaga, May 

 11, 1910; Clay Center, June 6, 1909; Hudson, June 9, 1907; Law- 

 rence, Nov. 1, 1905), Missouri (Monteer, Apr. 20, 1909; Nishna Lake, 



« Five specimens. ^ Four specimens. 



