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Bler (Fig Ad Crown bright yellow)

(Fig. 100.) Ad. 8. - Crown bright yellow, a black line behind the eye; front part of the cheeks black; ear-coverts white; back streaked with WOOD WARBLERS. black and margined with bright olive-green; wing-bars yellowish white; tail black, the outer feathers with white patches on their inner vanes at the tip; under parts white, the sides chestnut. Ad. 0+ .-Similar, but somewhat duller in color. Im. - Very different; upper parts bright yellowish olivegreen, back sometimes streaked with black; wing-bars yellowish white; under parts pure, silky white, the sides sometimes with spots or patches of chestnut. L., 5-14; W., 2.45; T., 2.00; B. from N., 29. Range.-Eastern North America; breeds from central Illinois and northern New Jersey north to Manitoba and Newfoundland, and southward along the Alleghanies to South Carolina; winters in the tropics. Washington, abundant T. V., Apl. 28 to May 30; Aug. 10 to Sept. 30. Sing Sing, tolerably common S. R., May 2 to Sept. 24. Cambridge, common S. R., May 5 to Sept. 10.

Nest, of strips of bark, leaf stems, etc., lined with tendrils and rootlets, in bushes, about three feet up. Eggs, four to five, white, with numerous distinct and obscure cinnamon- and olive-brown markings, chiefly in a wreath about the larger end, 69 x 50.

When settled for the summer, Chestnut-sided Warblers may be found in second growths, scrubby clearings, or the bushy borders of woodlands. There is a suggestion in their movements of the restless activity of the Redstart, as with drooped wings and slightly raised tail they flit among the lower growth. They have two songs, both of which closely resemble that of the Yellow Warbler, though a practiced ear can at once recognize the song of either.

Adults of this species are too conspicuously marked to be mistaken for any other Warbler, but in the fall have a care in identifying the very differently colored young. 660. Dendroica castanea (Wils.). BAY - BREASTED WARBLER. Ad. 8.-Forehead and cheeks black, a cream-buff patch on the sides of the neck; crown chestnut; throat, upper breast, and sides chestnut-rufous; back brownish ashy, streaked with black; two white wing-bars; inner vanes of outer tail-feathers with white patches at their tips; lower breast and belly buffy white. Ad. 2. - Crown olive-green, streaked with black and with generally some chestnut; rest of upper parts as in the 8; under parts buffy white; breast and sides more or less stained with rufous. Im. - Upper parts bright olive-green, indistinctly streaked with black; wings and tail much as in the ads.; under parts white, tinged with cream-buff, especially on the flanks. L., 5.63; W., 2-95; T., 2·12; B. from N., 30.