408 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



brownish; upper tail-coverts light cinuamon-buff to pinkish buff, 

 with a few iri-egular (partly V-shapcd or narrowly obomegoid) 

 markings of fuscous, especially anteriorly (next to rump) ; tail light 

 cinnamon-buff to pinkish buff (the middle rectrices sometimes shaded 

 with grajdsh brown) tipped with paler and crossed by about six 

 broad bars, or bands of fuscous; side of head and neck and entire 

 under parts dull light pinkish buff to very pale buff (between car- 

 tridge buff and ivory yellow), the chin and upper throat, breast, 

 abdomen, posterior flanks, anal region, and under tail-coverts immacu- 

 late, the sides of head and neck, lower throat, foreneck, and chest 

 streaked with fuscous, the sides and anterior part of flanks (some- 

 times sides of chest also) irregularly barred or transversely spotted 

 with the same, mostly on outer webs of feathers; a more or less 

 "solid" loral stripe of fuscous, extending from rictus to eye, and a 

 narrow postocular stripe, or streak, of the same; axiUars broadly 

 barred or banded with cinnamon-buff and fuscous, the two colors 

 about equal in extent, the fuscous bars more or less confluent along 

 shafts; under wing-coverts cinnamon-buff, heavily spotted with 

 fuscous, the under primar\^ coverts for the greater part uniform 

 grayish brown; inner webs of primaries grayish brown, spotted or 

 mottled along edges with pale cinnamon-buff; biU blackish brown, 

 the basal half, or more, of mandible paler (dull dark flesh color in life) ; 

 iris dark brown; legs and feet dusk}^ (livid bluish in life). 



Winter plumage. — Similar to the summer plumage but more deeply 

 colored, the spotting of upper parts deep cinnamon-buff to cinnamon,'^ 



Adult male.— Wing, 222-230 (226.9); tail, 84-96 (92.1); exposed 

 culmen, 69-88 (78.7); tarsus, 51-58.5 (55.2); middle toe, 34.5-40 

 (36.8).^ 



Adult female. —Wing, 227-252 (240.3); tail, 97-109 (100.7); exposed 

 culmen, 83-96 (90); tarsus, 54.5-60 (56.7); middle toe, 36.5-41 

 (39.1).^ 



Breeding range unknown, but possibly some portion of north- 

 western Alaska (Fort Kenai, May 18; St. Michaels, Norton Sound, 

 May 23; Kotzebue Sound, Aug. 26; Kowak River); migrating south- 

 ward through various island groups of the Pacific Ocean, chiefly 

 eastward of the 180th meridian, having been recorded from the fol- 

 lowing: Hawaiian group (all the islands, including Laysan, Sept. to 

 spring) ; Fanning group (Fanning, Palmyra , and Christmas islands) ; 

 Phoenix group (Phoenix and Canton islands) ; Marshall group (Jaluit 

 Island); Gilbert group; Society group (Tahiti); Low Archipelago or 

 Paumotu group (Vincennes Island); Marquesas; Cook Islands (Cook, 



" At least on newly acquired feathers. One thus marked (shot November 8) is 

 molting from a much faded plumage in which the spotting of the upper parte and 

 the general color of the under parts is almost buffy white on the old feathers. 



b Six specimens. 



