270 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
rectrices dusky, narrowly edged with pale grayish brown, the rest of 
tail light grayish brown or pale drab, the rectrices narrowly edged 
with paler; a superciliary stripe of dull white, narrowly streaked, 
especially posteriorly, with dusky; an indistinct loral stripe of light 
grayish brown, minutely flecked with dusky, the upper portion of 
auricular region light brown narrowly streaked with dusky; rest of 
head, neck (all round), and chest dull brownish white (inclining to 
pale buffy grayish brown on chest) distinctly streaked with dusky, 
the chin and upper throat, however, immaculate white or buffy 
white; rest of under parts immaculate white, or buffy white, the 
sides and flanks, however, usually with a few narrow shaft streaks 
of dusky; axillars and under wing coverts, except near edge of wing 
(where spotted with grayish brown) immaculate white; bill blackish 
terminally, more brownish basally (where dull greenish yellow in 
life); iris brown; legs and feet dusky brown (dull greenish yellow or 
yellowish green in life). 
Winter plumage.—Similar to the summer plumage but the cinna- 
mon or rusty tinge to scapulars, etc., absent and the black and dusky 
markings less sharply defined. 
Young.—Similar to the summer adult but scapulars and outermost 
interscapulars margined terminally on outer webs with white, and 
the chest, etc., more buffy and more narrowly or less sharply streaked. 
Downy young.—Head light grayish buff (between pinkish buff and 
vinaceous-buff), fading into buffy whitish on chin and throat; a 
rather broad median frontal streak of black, a narrow loral line of the 
same (throwing off a short vertical branch toward anterior angle of 
eye and a narrow branch beneath suborbital region), a still narrower 
postocular streak, and a small longitudinal spot near rictus; crown 
and occiput marbled with black and dark chestnut or burnt umber, 
and with a few mottlings of buffy, this dark-colored area margined 
laterally by a broad but irregular stripe of immaculate pale grayish 
buff, separated from a broad superciliary stripe of the same by a 
narrower irregular stripe of blackish brown; hindneck mottled or 
marbled with pale grayish brown, and dusky; general color of back 
and rump russet, intermixed with black and dotted or spangled with 
pale grayish buffy; wing mostly immaculate russet; under parts dull 
buffy white deepening into brownish buff on chest and strongly tinged 
on posterior portion with the same. P 
Adult male—Wing, 187-146 (139.8); tail, 59-65 (62.4); exposed 
culmen, 26-29.5 (28.4); tarsus, 27-30 (27.7); middle toe, 21.5-24.5 
(23.6).¢ 
2 Eight specimens. 
