BIEDS OF NOETH AND MIDDLE AMERICA. 355 



the middle pair of rectrices with a narrower median stripe of dusky 

 brown, the inner webs of the other rectrices darl^er brown than outer 

 webs; ^ lesser wing-covcrts brown ; middle coverts brown, margined ter- 

 minally with pale brownish gray, and marked with a more or less dis- 

 tinct median streak or spot of dusky; greater coverts brown, margined 

 terminally with paler and marked with a broad median tear-shaped 

 (mostl}' concealed) space of blackish; tertails mostlj^ blackish, but 

 outer webs chiefly brown, passing into a paler (sometimes pale grayish 

 or almost grayish white) hue terminally; rest of remiges dusky, edged 

 with paler or more grayish brown; edge of wing white; a broad super- 

 ciliary stripe of olive-graj', sometimes approaching grayish white on 

 lower portion; loral, suborbital, and auricular regions darker olive- 

 grayish, the latte.r margined above and below by narrow postocular and 

 rictal stripes of brown, these brown stripes sometimes narrowly streaked 

 with black; a broad malar stripe of dull white or pale buflj^, margined 

 below by a conspicuous submalar stripe or triangular spot of black or 

 mixed brown and black; under parts white, the chest marked with 

 wedge-shaped streaks of black, more or less broadly edged with rusty 

 brown, these streaks more or less coalesced in lower central portion of 

 chest, or upper breast, forming a more or less conspicuous irregular 

 spot; sides and flanks streaked with black and rusty brown, the ground 

 color, especially on flanks, more or less tinged with pale olive-grayish 

 or buffy; under tail-coverts white or pale bufly, more or less streaked 

 with brown; maxilla dusky brown, paler on tomia; mandible horn 

 color; iris brown; tarsi pale brown, toes darker. (In summer the 

 colors grayer, with streaks on chest, etc., narrower, sometimes wholly 

 black through disappearance of the rustj^-brown edgings; in winter 

 the general coloration browner, the brown parts more rustj', the gray 

 parts more bufl}^, the malar region, chest, sides, etc., more or less 

 strongly buffy, and the streaks on chest, etc., more broadly edged 

 with rusty brown.) 



Young. — Much like adults, but without anj^ gmy on upper parts, 

 the crown duller brown with the indistinct median stripe dull grayish 

 buffy and the narrow blackish streaks much I'ess distinct than in adults; 

 ground color of back and scapulars light bufiy brownish or dull buffy; 

 under parts duller white, often quite buffy, with the streaks narrower 

 and much less distinct. 



Adidt male.— Length (skins), 134.62-164.59 (149.86); wing, 63.25- 

 72.14 (67.31); tail, 61.98-70.87 (66.80); exposed culmen, 11.43-13.21 

 (12.45); depth of bill at base, 7.87-8.89 (8.13); tarsus, 20.32-23.37 

 (21.84); middle toe, 14.99-16.51 (15.49)." 



Adult feinale.— Length (skins), 130.81-154.94 (145.54); wing, 61.47- 

 71.37 (66.02); tail, 55.63-70.36 (63.75); exposed culmen, 11.43-12.95 



'Sometimes the rectrices, especially the middle pair, show faint narrow bars. 

 ' Forty-one specimens. 



