100 SYLVICOLIDH, WARBLERS.—GEN. 35. 
associating with troops of sparrows. WIzs., ii, 138, pl. 17, f. 4; pl. 45, 
f. 3; Nurt., i, 361; AuD., ii, 23, pl.76; Bp., 272; Rev., 187. coronara. 
Audubon’s Warbler. With a close general resemblance to the last, but 
throat yellow, not white; eyelids white, but no white superciliary line ; 
cheeks not definitely black ; wing-bars generally fused into one large white 
patch, and tail-blotches larger; otherwise like coronata, of which it is the 
western representative; and with which its changes of plumage are entirely 
correspondent. North America, from Rocky Mountains to Pacific; very 
abundant. AvD., ii, 26, pl. 77; Bp., 273; Coopr., 88. . . AUDUBONII. 
Blackburnian Warbler. Hemlock Warbler. in spring: back black, 
more or less interrupted with yellowish; crown black, with a central 
orange spot; a broad black stripe through eye, enclosing the orange 
under eyelid; rest of head, with whole throat, most brilliant orange, or 
flame color; other under parts whitish, more or less tinged with yellow, and 
sides streaked with black; wing-bars fused into a large white patch; tail- 
blotches occupying nearly all the outer feathers; bill and feet dark. 9 and 
young ¢: upper parts and crown olive and black, streaked (much like 
adult ¢ and young striata, but is smaller, with more black, and usually a 
yellow trace on the crown) ; superciliary line and throat clear yellow (pale 
for this species, but as rich as is usual for adults of the various yellow- 
throated species), fading insensibly on the breast; lower eyelid yellow, con- 
fined in the dusky ear-patch; sides streaked much as in the adult; wing- 
patch resolved into two bars; tail-blotches nearly as extensive as in the 
adult, the outer feathers showing white on the outer webs at base (this is a 
strong feature). Eastern United States, abundant in woodland; the loveli- 
est of the warblers; none can compare with the exquisite hue of the throat. 
S. parus, Wis., v, 114, pl. 44, f. 3; Nurr., i, 392; Avup., ii, 40, pl. 83 
(young). WILS., iii, 64, pl. 23, f. 3; Nurr., i, 379; Aup., ii, 48, pl. 87; 
|) eee 1c aS es ee ee em Nera te oe eC En 
Black-poll Warbler. (PLaTE u, figs. 15, 16, 15a, 16a.) ¢ in spring: 
upper parts thickly streaked with black and oliva- 
ceous-ash; whole crown pure black; head below 
the level of the eyes, and whole under parts, white, 
ing forward on the sides of the neck to form two 
stripes that converge to meet at base of the Dill, 
cutting off the white of the cheeks from that of 
Fic. 42. Black-poll Warbler. the throat; wing-bars and tail-blotches ordinary ; 
inner secondaries white-edged; primaries usually edged externally with 
olive; feet and under mandible flesh color, or pale yellowish ; upper mandi- 
ble black. ¢ in spring: upper parts, including the crown, greenish-olive, 
both thickly and rather sharply black-streaked ; white of under parts soiled 
anteriorly with very pale olivaceous-yellow, the streaks smaller and not so 
crowded as in the 2, but still plain enough. Young: closely resembling the 
adult 9, but a brighter and more greenish olive above, with fewer streaks, 
the sides thickly marked with black streaks crowd- 
