in Various Species of North American Birds. 
59 
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 pronounced chestnut on the sides. 
31. Dendrceca pennsylvanica. 
First plumage : male. Remiges, 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. Remiges 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 
orbital region and eyelids, and breast, dark ashy, somewhat lighter on rump. 
Abdomen, anal region, and crissum pale sulphur-yellow, blotched somewhat 
indistinctly anteriorly with ashy. Throat pale ashy, with a few yellow 
feathers intermixed. From a specimen in my collection shot at Upton 
Me., August 10, 1874. This bird was very young, indeed barely able to 
fly. Several specimens a little further advanced show an increased 
amount of yellow on the throat and abdomen, but are otherwise similar. 
33. Dendrceca discolor. 
First plumage: male. Remiges, rectrices, etc., as in adult. Wing- 
bands very rich buff ; rest of upper parts, with sides of head, light cinna- 
mon, becoming almost ashy on the forehead and rump, and tinged slightly 
with yellowish-green on the back. Eyelids dirty white. Entire under 
parts pale lemon-yellow, somewhat duller, and with a shade of ashy on 
