BIRDS OF NORTH AND MIDDLE AMERICA. 



579 



white superciliary stripe, usually becoming yellow anteriorly (over 

 lores); a crescentic suborbital spot and patch on side of neck (invading 

 median posterior portion of auricular region), white; throat and chest 

 lemon or gamboge j^ellow, the chin usually more or less white; rest of 

 under parts white, broadly streaked laterall}- with black, the broad black 

 streaks on sides of chest confluent with a narrow stripe connecting 

 them with the triangular l>lack patch on side of head; bill black; iris 

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

 114.3-127.2(121.9); wing, '64.5-68.6 (66.9); tail, 49-53.6 (50.7); exposed 

 culmen, 12.7-15 (13.8); tarsus, 17-18 (17.4); middle toe, 12-13 (12.4).^ 



Adult female. — Similar to the adult male and often not distinguish- 

 able, but usually with less black on forehead, which is more often 

 gray, streaked with black, medially, and j^ellow of throat and chest 

 averaging slightly paler; length (skins) 113-125.7(121); wing, 63.2-65.3 

 (64.6); tail, 46-53 (50); exposed culmen, 12.4-14 (12.9); tarsus, 16.3- 

 17.5 (16.9); middle toe, 11.5-12.7 (12.2).' 



Yoimg male in first autumn. — Similar to the adult male, but grav 

 of upper parts and white of under parts, especiall}^ the flanks, tinged 

 with brown. 



Yioung female in first autiunn. — Similar to the young male in autumn, 

 but more strongly tinged with brown, both above and below, and 

 screaks on sides and flanks (especially the latter) less distinct, some- 

 times obsolete. 



Young., first plumage. — Above, including entire pileum, plain light 

 grayish brown or deep drab-gray; wings dusky, with light grajnsh 

 brown edgings (broad and conspicuous on tertials, narrow and gra3'er 

 on primaries), the middle and greater coverts broadly tipped with 

 brownish white; a rather broad supra-auricular stripe, a narrow sub- 

 orbital streak, and space on side of neck brownish white; loral and 

 auricular regions plain deep drab-gra}, the latter with a whitish ter- 

 minal or subterminal spot; chin and throat pale drab-gray; chest and 



' Eighteen specimens. 



^ Eight specimens. 



A series of twelve specimens collected during the breeding season at and near Cape 

 Charles, Virginia, have on the average longer bills than a series of fourteen taken at 

 various localities east of the Alleghenies (some of them on the coast) , the average 

 measurements of the two series being as follows: 



