574 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



DENDROICA BLACKBURNI^ (Gmelin). 

 BIACEBTTRNIAN WARBLER. 



Adult male in spring and summer. — Pileum and hindneck black, 

 relieved by an oval patch or broad stripe of cadmium yellow or orange 

 on middle of crown; a broad superciliary stripe of cadmium yellow or 

 orange, confluent posteriorly with a large patch of the same on side of 

 neck; a spot of rather paler orange-yellow immediately beneath eye, 

 including lower eyelid; loral streak and auricular region black, the two 

 connected by a narrow rictal streak; malar region, chin, throat, and 

 chest rich orange or cadmium orange; remaining under parts pale yel- 

 lowish or yellowish white (more decidedly yellowish on breast), the 

 under tail-coverts white; sides and .flanks streaked with black, these 

 black streaks commencing at lower posterior extremity of auricular 

 region; general color of upper parts black, the back streaked with 

 whitish, especially the exterior row of interscapulars, which have 

 most of their outer web whitish, forming, when feathers are properly 

 arranged, two stripes along each side of back; feathers of rump and 

 upper tail-coverts more or less distinctly edged with whitish; two to 

 three outermost rectrices white, with black shafts and with a terminal 

 guttate or cuneate mark of black; fourth rectrix also with much white 

 on subterminal portion of inner web, and fifth sometimes with more 

 or less of a white edging to subterminal portion of inner web; exposed 

 portion of middle wing-coverts and innermost greater coverts white, 

 forming a conspicuous patch on wing, the outermost greater coverts 

 black, broadly tipped with white and narrowly edged with grayish; 

 remiges black or dusky, narrowly edged with olive-grayish, these 

 edgings broader and paler (sometimes white) on tertials; maxilla 

 brownish black, mandible horn color (in dried skins), paler basally; 

 iris brown; legs and feet dusky brown (in dried skins); length (skins), 

 111.8-119.4 (114.8); wing, 65.3-69.3 (67.8); tail, 46.5-49.3 (48.3); 

 exposed culmen, 9.4-10.4 (9.9); tarsus, 17-17.8 (17.5); middle toe, 

 10.7-11.7 (10.9).' 



Adult female in spiking and summer. — Above grayish olive or hair 

 brownish tinged with olive; pileum more or less streaked or flecked 

 with black, the crown with more or less of a central spot of naples, or 

 pale maize, yellow; back broadly streaked with black, the exterior 

 row of interscapulars with outer webs mostly very pale buffy grayish 

 or grayish buff}^, forming two broad stripes when feathers are properly 

 arranged; upper tail-coverts black, margined with brownish gray; 

 wings and tail as in adult male, but general color much duller blackish, 

 the lateral rectrices less extensively white and the. white on greater 

 wing-coverts usually not confluent with that on middle coverts, the 

 white thus usually forming two broad bars instead of a single large 



^ Five specimens. 



