BLUE-GREEN WARBLER. 
199 
wings dark dusky olive ; primaries and greater coverts edged and 
tipped with pale yellow ; second row of coverts wholly yellow ; lesser, 
olive ; tail deep brownish black, lighter on the edges, the three exterior 
feathers broadly spotted with white. 
The female is destitute of the black mark under the eye ; has a few 
slight touches of blackish along the sides of the neck ; and some faint 
shades of brownish red on the back. 
The nest of this species is of very neat and delicate workmanship, 
being pensile, and generally hung on the fork of a low bush or thicket ; 
it is formed outwardly of green moss, intermixed with rotten bits of 
wood and caterpillars' silk ; the inside is lined with extremely fine fibres 
of grape-vine bark ; and the whole would scarcely weigh a quarter of 
an ounce. The eggs are white, with a few brown spots at the great end. 
These birds are migratory, departing for the south in October. 
Species XXVII. SYLVIA EARA. 
BLUE-GREEN WARBLER. 
[Plate XXVII. Fig. 2.] 
This new species, the only one of its sort I have yet met with, was 
shot on the banks of Cumberland river, about the beginning of April ; 
and the drawing made with care immediately after. Whether male or 
female I am uncertain. It is one of those birds that usually glean 
among the high branches of the tallest trees, which render it difficult to 
be procured. It was darting about with great nimbleness among the 
leaves, and appeared to have many of the habits of the Flycatcher. 
After several ineffectual excursions in search of another of the same 
kind, with which I might compare the present, I am obliged to intro- 
duce it with this brief account. 
The specimen has been deposited in Mr. Peale's museum. 
The Blue-green Warbler is four inches and a half long, and seven 
and a half in extent ; the upper parts are verditer, tinged with pale 
green, brightest on the front and forehead ; lores, line over the eye, 
throat, and whole lower parts very pale cream ; cheeks slightly tinged 
with greenish ; bill and legs bright light blue, except the upper mandi- 
ble, which is dusky ; tail forked, and, as well as the wings brownish 
black ; the former marked on the three exterior vanes with white and 
edged with greenish ; the latter having the first and second row of 
coverts tipped with white. Note a feeble chirp. 
