512 NORTH AMERICAN BIRDS. 



ter, from southern Cal- 

 ifornia to Guatemala. 

 668. D. townsendi 

 (NuiT.). Townsend's 

 Warbler. 



Sides without distinct streaks (ex- 

 cept, sometimes, in young) ; black 

 of throat scarcely extending over 

 chest, and with a decidedly con- 

 vex posterior outline. 



Adult male : Top and sides of 

 head gamboge-yellow, the 

 occiput (sometimes crown 

 also) spotted with black ; 

 chin and throat black ; rest 

 of lower parts white, usu- 

 ally somewhat tinged with 

 grayish on sides ; back, scap- 

 ulars, and rump gray, 

 broadly streaked or spotted 

 with black, this prevailing 

 on back and usually quite 

 uniform on hind-neck. Adult 

 female : Similar to male, but 

 black of throat more or less 

 broken or mixed with yel- 

 low, yellow of head duller, 

 top of head more profusely 

 spotted with black, and black 

 markings of upper parts 

 much less extensive, the 

 gray decidedly predominat- 

 ing. Young in first autumn : 

 Top of head olive super- 

 ficially, but feathers yellow 

 beneath surface ; sides of 

 head tinged with olive; chin 

 and throat brownish white 

 superficially, but black or 

 dusk}* grayish immediately 

 beneath surface ; back, etc., 

 dull grayish brown or gray- 

 ish olive, usually more or 

 less streaked, narrowly, with 

 dusky ; white of lower parts 



