408 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
brownish; upper tail-coverts light cinnamon-buff to pinkish buff, 
with a few irregular (partly V-shaped or narrowly obomegoid) 
markings of fuscous, especially anteriorly (next to rump); tail light 
cinnamon-buff to pinkish buff (the middle rectrices sometimes shaded 
with grayish 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; axillars 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 primary coverts for the greater part uniform 
grayish brown; inner webs of primaries grayish brown, spotted or 
mottled along edges with pale cinnamon-buff; bill blackish brown, 
the basal half, or more, of mandible paler (dull dark flesh color in life) ; 
iris dark brown; legs and feet dusky (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 (240.8); 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 parts and 
the general color.of the under parts is almost buffy white on the old feathers. 
+ Six specimens, 
