280 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
on proximal secondaries) ; tertials deep grayish brown passing through 
paler grayish brown into brownish white on edges of outer webs; 
primary coverts dusky, narrowly margined terminally with pale gray 
or whitish (more broadly on proximal coverts); primaries grayish 
brown (darker on distal quills), very narrowly edged with pale brown- 
ish gray or grayish white, the shafts of all pale grayish brown basally 
and terminally, whitish subterminally (more distinctly and exten- 
sively so on outermost quill); rump and upper tail-coverts sooty 
grayish brown, indistinctly or very narrowly margined with pale 
brownish buffy, the lateral upper tail-coverts dull whitish, each with 
a V-shaped mark of dusky; middle pair of rectrices dusky grayish 
brown (like upper coverts), narrowly margined with dull buffy 
whitish, the remaining rectrices paler (the outermost very pale) 
grayish brown, distinctly but narrowly margined with whitish; sides 
of head, including superciliary region, sides of neck, foreneck, and 
chest dull buffy whitish (the chest more decidedly buffy, sometimes 
pale grayish buff or between tilleul buff and pale olive-buff) narrowly 
streaked with dusky, the superciliary region, however, with very few 
and minute streaks or nearly immaculate anteriorly; chin, throat and 
under parts (posterior to chest) immaculate white; axillars and most 
of under wing-covers immaculate white; bill black, more brownish 
basally; iris brown; legs and feet blackish. 
Winter plumage.—Above nearly uniform buffy brownish or drab, 
the feathers with dusky shaft-streaks; under parts duller or more 
brownish white, the chest, sides of neck, and sides of breast strongly 
tinged with dull brownish buffy but not distinctly streaked; other- 
wise essentially as in summer. 
Young.—Above buffy drab, the scapulars and interscapulars 
darker centrally and margined terminally with white or buffy white, 
the pileum streaked with dusky; otherwise much like the winter 
plumage, but chest streaked with dusky. 
Downy young.—Forehead and sides of head very pale grayish 
buffy, relieved by a median frontal streak of brownish black (which 
does not reach bill but is confluent posteriorly with blackish of 
crown), a short, narrow blackish streak on anterior half of lores (not 
reaching to bill, however), a less distinct rictal streak, a dusky 
brown subauricular spot, and a na:cow postocular streak; anterior 
portion of crown brownish black, the posterior portion and occiput 
mixed blackish and brown, the occiput dotted or flecked with pale 
grayish buffy; hindneck mixed grayish dusky and pale buffy grayish; 
back, wings, and rump mixed dusky and snuff brown, dotted or 
spangled, especially on rump, with dull buffy whitish; under parts 
dull white, the chest shaded with pale brownish gray. 
