SYLVICOLINjE. SYLVICOLA. 
59 
its lower part^ and the sides of the body^ streaked with deep red. Fe- 
male similar to the male,, but with the tints duller and paler, the red 
of the head scarcely apparent, and the fore-neck very faintly streaked. 
Young dull light greenish-brown, tinged with grey, the head streaked 
with dusky ; lower parts yellowish-grey, the sides of the neck and 
body, with the breast, faintly streaked with greyish-brown. 
Male, 4^, 8^. 
From Texas northward. Very abundant. Spends the winter in all 
the Southern States. 
Yellow Red-poll Warbler, Sylvia petechia, WiLS. Amer. Orn. v. vi. p. 19. 
Sylvia petechia, Bonap. Syn. p. 83 ; S. palmarium, p. 78. 
Sylvicola petechia. Yellow Red-poll Warbler, Swain. & Rich. F. Bor. Amer. v. ii. 
p. 215. 
Yellow Red-poll Warbler, Sylvia petechia, Nutt. Man. v. i. p. 364. 
Yellow Red-poll Warbler, Sylvia petechia, Aud. Orn. Biog. v. ii. p. 259, Adult Male 
and Young ; p. 360, Adult Male and Female. 
91. 16. Sylvicola Amerieaiha, Lath. Blue Yellow-backed 
Wood- Warbler, — Yellow-backed Warbler, — Blue Yel- 
low-back Warbler. 
Plate XV. Male and Female. 
Bill much attenuated ; outer three quills nearly equal, first or second 
longest ; tail almost even, with the feathers pointed. Male with the 
upper parts light blue, the fore part of the back yellowish-green ; two 
broad bands of white on the wing, formed by the tips of the secondary 
coverts, and first row of small coverts ; quills and tail-feathers dusky, 
margined with blue ; a white spot on the outer three of the latter ; 
loral space black ; both eyelids with a white spot ; throat yellow, with 
whitish patehes, a lunular band of blackish on the fore neck ; breast 
yellow, spotted with dull orange, the rest of the lower parts yellowish, 
fading into white, the sides pale greyish-blue. Female similar but 
paler ; the loral band wanting; throat, fore neck, and breast yellow, 
without the blaek lunule. 
Although the bill of this species is mueh attenuated, it is not essen- 
tially different in form from that of S. Blackburnise, and others of this 
genus ; the wings are similar to those of the rest, and there seems no 
reason for setting it apart to form a genus, as has been done by Bo- 
naparte. 
Male, 4i, 6i. 
From Texas, generally distributed. Exceedingly abundant. Migra- 
tory. 
Blue Yellow-back Warbler, Sylvia pusilla, WiLS. Amer. Orn. v. iv. p. 17. 
Sylvia Americana, Bonap. Syn. p. 33. 
Blue Yellow-backed Warbler, Sylvia Americana, Aud. Orn. Biog. v. i. p. 78. 
92. 17. Sylvicola Townsendi, Nutt. Townsend’s Wood- 
Warbler. 
Plate CCCXCIII. Fig. 1. Male. 
Wings of moderate length, rather pointed, with the second and third 
