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THE BLUE-WINGED YELLOW WARBLER.
Sylvia solitaria, Wils.
PLATE XX. Male and Female.
This pretty little Warbler is migratory, and arrives in Louisiana from the south, in the beginning of spring. It is found in open woods, as well as in the vicinity of ponds overgrown with low bushes and rank weeds. Along with a pair of Blue-winged Yellow Warblers, I have represented a species of Hibiscus, which grows on the edges of these ponds. Its flowers are handsome, but unfortunately have no pleasant odour.
The species which now occupies our attention is a busy, active bird, and is seen diligently searching among the foliage and grasses for the small insects on which it feeds, mounting now and then towards the tops of the bushes, to utter a few weak notes, which are in no way interesting.
Its nest, which is singularly constructed, and of an elongated inversely conical form, is attached to several stalks or blades of tall grass by its upper edge. The materials of which it is formed are placed obliquely from its mouth to the bottom. The latter part is composed of dried leaves, and is finished within with fine grass and lichens. The female lays from four to six eggs, of a pure white colour, with a few pale red spots at the larger end. The first brood is out about the middle of May, the second in the middle of July. The young disperse as soon as they are able to provide for themselves, this bird being of solitary habits.
It leaves Louisiana in the beginning of October. I have never seen the species farther eastward than the State of Jersey, where I killed several within a few miles of Philadelphia, not however until my last visit to that State in 1829. It is frequent in the barrens of Kentucky, and up the Mississippi, as far at least as St Genevieve, where I shot two individuals many years ago.
Its flight is short, undetermined, and is performed in zig-zag lines, as in most of its tribe. It sometimes ascends twenty or thirty yards in the air, as if with an intention of going to a great distance, but still moving in a zig-zag manner, when it suddenly turns about, and comes down near the place from which it set out. It does not chase insects on wing, but feeds in a great measure on the smaller kinds of spiders, not neglecting,
