11 



male, clear ■white, tinged with pale yellow, each feather (excepting on 

 throat) spotted terminally with black. From two specimens in my col- 

 lection taken at Upton, Me., August 5 and 6, 1874. One of these, the 

 male, has a few orange feathers on the throat, indicating the coming fall 

 plumage. 



" Young in autumn. Above similar to the adult female in fall plumage, 

 but more olivaceous ; all the markings less distinct. Superciliary stripe 

 and entire lower parts, except the crissum, pale yellowish-buff, hardly 

 brighter on the jugulum. Sides very faintly streaked with grajdsh. In 

 my collection (No. 1003), Mt. Carmel, 111., August 15, 1870." — R. R. 



30. Deudrceca castanea. 



First plumage : female. Eemiges, rectrices, primary coverts, and alulae 

 as in adult. Pileum, nape, and rump dull brown ; back dull oUve-green; 

 upper tail-coverts slaty-black. Entire under parts creamy-white, with 

 the slightest possible tinge of clay-color, varying to ashy on the breast. 

 No trace of chestnut on the flanks. Sides of head buff^, strongly tinged 

 with greenish on the auriculars and maxillary line. Each feather of the 

 body, both above and beneath, with a large terminal spot of black; the 

 posterior half of abdomen, anal region, and crissum are, however, im- 

 maculate. In my collection, from Upton, Me., August 9, 1873. 



A very complete suite of specimens, taken late in August and early in 

 September, illustrates well the development of the plumage of the young 

 of this species. The spotted feathers of the under parts, with the excep- 

 tion of a narrow line down the centre of the breast, are the first to disap- 

 pear, and simultaneously with their removal, the chestnut flank patches 

 become apparent. Next the pileum and nape take on the autumnal 

 green, and last of all the feathers of the back and central line beneath 

 are changed. Adults of this species in fall dress are indistinguishable 

 from the young, except by the more pronou.nced chestnut on the sides. 



31. Dendroeca pennsylvanica. 



First plumage : male. Kemiges, rectrices, etc., as in spring specimens. 

 Wing-bands white, scarcely edged with yellow, and the general aspect of 

 wing much duller than in fall specimens. Rest of upper parts, sides of 

 head, jugulum, breast and sides, pale cinnamon, brightest on pileum, 

 lighter on throat and sides of head. Feathers of back with central spots 

 of dull black. Abdomen, anal region, and crissum creamy-white. From 

 a specimen in my collection shot at Cambridge, Mass., July 18, 1874. It 

 is not a little remarkable that the wing-markings of this bird are much 

 more nearly like those of adults in spring than of the young in autumn. 



32. Dendrceca maculosa. 



First plumage : female. Remigea and rectrices slightly paler than in 

 adult ; greater and middle wing-coverts just tipped with fulvous, forming 

 two narrow wing-bands; rest of upper parts, sides of head, including 



