SYLVICOLIB^— SYLVICOLINJE : TRUE WAHBLERS. 





parts broxvnish-olive, streaked with black ; the fiery orange of the male not so intense, or 

 merely yeUow, that on the crown obscure or obsolete. White speculum of the wing resolved 

 into two white bars. Sides of the head like the back, instead (jf black as in the male, and tlie 

 lateral streaks duller and more blended. $ and ? , adult, in autumn, are sufficiently siu.ilur 

 to the respective sexes in spring, but the coloration is toned down, the fiery colors of the male 

 being less intense, and the black of the back being much mixed with olivaceous, bringing 

 about a close resemblance to the spring female; while the female is duller still, and more im- 

 purely colored. Young : Early autumnal birds of the year of this species are very obscure- 

 looking, showing no sign of the rich coloration of the adults. Above, like the adult ? , but 

 stm browner, with more obsolete dusky streaking. Usually an indication of the crown -spot in 

 a lightening of the part. Sides of the head like the crown, cutting off a supercihary stripe and 

 the eyelids, which are oclu-ey-white. Whole under parts white, tinged, especially on the throat 

 and breast, with yellowish, the sides with obsolete streaking. Indication of the pecuhar pat- 

 tern of the adults, though without their actual coloration, together with the extent of white on 

 the tad-feathers, \^aU usually suffice for the determination of the species, before any orange 

 appears on the throat, after which there can be no difficulty. Chiefly Eastern N. Am. ; W., 

 however, to Utah. Abundant in mixed woodland; breeds in northerly parts of its U. S. range 

 and northward; winters extralimital. One of the later migrants in spring. Nests in bushes 

 and low trees ; eggs not peculiar. 

 Vi3. D. stria'ta. (Lat. stn'nin, striped. Pig. 1G6.) Black-poll Wakbler. (J, adult : Back, 

 rump, and upper tail-coverts grayish-olive, heavily streaked with bind;-, who]" ernwn pure 

 glossy black. Below, pure white ; a double series of black streaks 

 starts from the extreme chin, and diverges to pass one ou each 

 side to the tail, the streaks being confluent anteriorly, discrete 

 posteriorly. Side of head above the chain of streaks pure white, 

 including lower eyelid. Wings dusky, the primaries with much 

 ijreenish edging, the inner secondaries with whitish edging, the 

 greater and median coverts tipped Avith white, forming two cross- 

 bars. Tail like the wings, with rather small wliite spots at the 

 ends of the inner webs of two or three outer feathers. Upper pj^ iso. — Black-pnii""wiir- 

 mandible brownish-black ; lower mandible with the feet flesh- tier, nat. size. (Aduat. del. E.G.) 

 c(dored or yellowish. Length 5.25-5.75 ; extent 8.75-9.30 ; wing 2.70-2.90 ; tail 2.25. ?: 

 Entire upper parts, including the crown, grecnish-cdive, with dusky streaks ; below, white, 

 nuich tinged with greenish-yellow, especially anteriorly, the streaks dusky and not so sharp as 

 those of the male, but still very evident. Bars and edgings of the wings greenish-white. Tail 

 as in the male. Rather smaller than the male on an average. Young : Sinrilar to the adult 

 9 , but brighter and more greenish-olive above, the streakings few and chiefly confined to the 

 middle of the back ; below, more or less completely tinged with greenish-yellow, the streakings 

 obsolete, or entirely wanting. Under tail-coverts usually pure white. These autumnal birds 

 bear an extraordinary resemblance to those of D. castanea (though the adults are so very difl'er- 

 ent), the upper parts being, in fact, the same in both. But young castanea generally sliows 

 traces of the chestnut, or at least a buify shade, quite different from the clear greenish-olive of 

 striata, this tint being strongest on the flanks and under tail-coverts, just where striata is the 

 most purely white. Moreover, castanea shows no streaks below, traces at least of which are 

 usually observable in striata. N. Am., excepting the AVestern and most of the Middle Province ; 

 N. to the Arctic ocean, Greenland, Alaska; west to Nebraska and Colorado. Winters extra- 

 linfital. Breeds from northern New England northward. Migrates late in the spring, bringing 

 up the rear-guard of the Warbler hosts ; when the Black-polls appear in force the collecting 

 season is about over ! Nests low in spruce-trees and other evergreens; eggs 5, 0.72 X 0.50, 

 not peculiar. 



