354 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



this increasing toward the middle pair of rectrices, which, for the 

 exposed portion, are dusky barred with white — the next to outer- 

 most pair, however, without any dusky on inner web, and with only 

 one or two dusky spots near end of outer web; a white supraloral 

 stripe, extending to above eyes; lores streaked or flecked with dusky, 

 sometimes with a dusky line from bill to eye; suborbital and malar 

 regions white, more or less streaked with dusky; chin and throat 

 immaculate white, the lower throat, however, usually more or less 

 streaked or flecked with dusky; foreneck and chest white, rather 

 broadly streaked with dusky, the lower chest, especially laterally, 

 usually with markings more irregular, often V-shaped or more or 

 less transverse; rest of under parts immaculate white; axillars and 

 under wing-coverts deep grayish brown (like back, etc.), narrowly 

 barred with white; bill black, slightly more brownish basally; iris 

 dark brown; legs and feet greenish gray or bluish gray, tinged with 

 greenish (in life). 



Winter plumage. — Similar to the summer plumage, but pileum and 

 hindneck plain brownish gray (sometimes indistinctly streaked with 

 darker), back, scapulars, and tertials with much smaller and, usually, 

 fewer spots, mostly along edges of the feathers, and chest and sides 

 of neck nearly uniform brownish gray, the foreneck and median 

 portion of chest rather less distinctly streaked than in summer. 



Young. — Similar to the winter plumage, but spotting of upper 

 parts more brownish. 



Adult male.— Wing, 132-145 (136.7); tail, 55-60 (57.6); exposed 

 culmen, 30-36 (33.7); tarsus, 30.5-36 (33.3); middle toe, 24-29 

 (26.2). « 



Adult female. —Wing, 134-144 (140.2); tail, 57-63 (60.5); exposed 

 culmen, 31.5-36.5 (34.4); tarsus, 31-35 (32.9); middle toe, 25-28 

 (26.3).^ 



According to Mathews (Birds of Australia, iii, pt. 2, May 2, 1913, 203) the birds 

 from eastern Asia are separable as a subspecies {Tringa ocrophiis assami Mathews), 

 wliich breeds in Siberia and migrates southward as far as the Malay Arcliipelago. 



