352 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



scapulars, and hindneck; pileum with a distinct median stripe of pale 

 grayish buffy streaks, the black lateral portions narrowly and indis- 

 tinctly streaked with light olive-brownish; lesser wing-coverts broadly 

 margined with brownish gray, the margins or edges of other wing- 

 feathers more brown or buffy; rump grayish olive, broadly but not 

 distinctly, streaked with dusky; terminal portion of secondaries and 

 rectrices barred, more or less, with brownish gray; upper tail-coverts 

 brownish gray narrowly barred with dusky; a broad superciliary stripe 

 of dull buffy; a blackish postocular streak; auricular region and sides 

 of neck light buffy grayish brown, the latter streaked with blackish; 

 chin, throat, chest, breast, and upper part of abdomen plain light wood 

 brown or dull brownish buff, the breast and abdomen tinged with pink- 

 ish red; lower abdomen, flanks, and under tail-coverts light buffy olive, 

 broadly streaked with dusky, the last also narrowly barred with the 

 same; under wing-coverts uniform sooty black; edge of wing, particu- 

 larly the carpal region, pinkish red. 



Adult female after 'breeding season. — Similar to the preceding, but 

 paler markings of upper parts broader (the blackish streaks corre- 

 spondingly narrower), and the color more brown; general color of 

 under parts rather deeper, with dusky streaks on flanks, etc., narrower; 

 under wing-coverts dusky grayish. 



Young. — Somewhat like post-nuptial adult female, but chest and 

 sides streaked with dusky.' 



Adult mafo.— Length (skins), 137.2-194.3 (170.4); wing, 88.9-99.1 

 (95); tail, 48.8-67.8 (55.4); culmen, from base, 19.8-22.9 (20.3); depth 

 of bill at base, 10-12.7 (11.9); tarsus, 27.9-32.8 (30.6); middle toe, 

 20.6-23.5 (22.1).' 



Adulifetnale.— Length (skins), 165.1-170.2 (167.4); wing, 83.8-89.9 

 (86.1); tail, 53.3-61 (57.2); culmen, from base, 17.8-19.3 (18.5); depth 

 of bill at base (one specimen), 10.4; tarsus, 28.2-30.6 (29); middle toe, 

 19.6-22.4 (20.6).' 



' The single young bird seen by me has partly assumed the adult plumage. 



^ Eighteen specimens. 



' Five specimens. 



Adult males from different localities average as follows: 



While considerable differences in measurements are thus indicated, I am unable 

 to detect any local variation in plumage, at least among adult males. 



