552 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



white patch covering middle and greater wing-coverts, and with a 

 white subterminal patch on inner webs of four to five outeraiost rec- 

 trices; females and young also with a white subterminal patch or spot 

 on inner web of four to five outermost rectrices. 



Adult male in xpring and summer. — Above bluish slate-gray, 

 streaked, except sometimes on supra-auricular region, occiput, and 

 hindneck, with black, the streaks broadest on back, scapulars, and 

 upper tail-coverts, where partaking more of the character of triangular 

 or wedge-shaped central spots; crown with a large central elongated 

 patch of rich lemon or gamboge yellow; lower rump with a triangular 

 patch of lighter lemon or canary yellow; wings black, the middle and 

 greater coverts very broadly tipped with white, the latter also broadly 

 edged with white, forming a large and conspicuous wing-patch, the 

 remiges narrowly edged with gray (broader on tertials); tail black with 

 bluish gray edgings (becoming white on outermost rectrix); inner webs 

 of four to five outermost rectrices with a large subterminal patch of 

 white, decreasing in size inwardly; sides of head bluish slate-gray, 

 like general color of upper parts, darkening (sometimes into nearly 

 black) on suborbital region and lores, and relieved by a white spot on 

 upper eyelid (sometimes small and restricted to posterior portion) and 

 a larger one on lower eyelid; chin and throat bright lemon or gamboge 

 yellow; chest black, or mixed black and gray; median portion of 

 breast, together with abdomen and under tail-coverts, white; sides of 

 breast, next to median white space, black, forming a large patch, con- 

 fluent anteriorly with the black or partly black jugular area, and con- 

 tinued posteriorly over sides and flanks in broad streaks; a large patch 

 of yellow on each side of breast outside the black area; bill black; iris 

 brown; legs and feet dark brown or brownish black. 



Adult male in axitxuiin or winter. — Much duller and browner than 

 the summer male, and showing much less of black, that of chest and 

 sides mostly overlaid by broad tips or margins to the feathers of 

 brownish white; gray of upper parts much obscured by a wash of 

 brown, and white wing-markings tinged with brown. 



Advlt female in spring and summer. — Essentially like the summer 

 male in coloration, but much duller and with less of black on under 

 parts; gray of upper parts duller, usually more or less tinged with 

 brown; yellow crown-patch smaller, more or less broken by brown or 

 brownish gray tips to feathers; middle and greater wing-coverts more 

 narrowly tipped with duller white or pale brownish gray, the latter 

 not edged with white; yellow of throat paler, usually passing into 

 white on chin; chest and sides of breast white or pale grayish, more or 

 less heavily spotted or clouded with black; lateral pectoral patches 

 smaller and paler yellow. 



Adult female in autumn and winter. — Similar to the winter male, 

 but smaller and still duller in color, the back without sharply defined 



