NORTH AMERICAN. BIRDS. 
ter, from southern Cal- 
ifornia to Guatemala. 
668. D. townsendi 
(Nourt.). Townsend’s 
Warbler. 
F-. 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 
dusky 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 
