Читать книгу A Synopsis of the Birds of North America - John James Audubon - Страница 63

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 patches, 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 black lunule.

Although the bill of this species is much attenuated, it is not essentially different in form from that of S. Blackburniæ, 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 Bonaparte.

Male, 41/6, 61/2.

From Texas, generally distributed. Exceedingly abundant. Migratory.

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.