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278 - ORNITHOLOGY AND OOLOGY. 
October. But little is known of the habits of this bird, as 
it prefers the deep woods and swamps to the more open dis- 
tricts. 
VIREO FLAVIFRONS. — Vieillot. 
The Yellow-throated Vireo, 
Vireo flavifrons, Vieillot. Ois. Am., I. (1807) 85. Aud. Orn. Biog., II. (1884) 
119; V. 428. Jb.,Syn. Jb., Birds Am., IV. (1842) 141. 
Muscicapa sylvicola, Wilson. Am. Orn., II. (1810) 117. 
DESCRIPTION. 
No spurious quill; the first and fourth equal; from bill to middle of back, sides 
of head, neck, and fore part of breast olive-green; beneath, from bill to middle of 
belly, with a ring round the eyes, sulphur-yellow; lores dusky; rest of under parts 
white; of upper, ashy-blue, tinged with green; two white bands on the wing; ter- 
tiaries edged with white, other quills with greenish; outer tail feathers edged with 
yellowish-white; the outer web of first feather entirely of this color, except near 
the end. 
Length, nearly six inches; wing, three and twenty one-hundredths. 
This beautiful Vireo is not very common in New England, 
although it is found in all these States as a summer visitor. 
It arrives from the South about the tenth of May, sometimes 
not earlier than the fifteenth, and commences building 
about the first or second week in June. The nest is placed 
in a small fork of a tree, usually the apple-tree, at a height 
of about fifteen or twenty feet from the ground. It is the 
most beautiful nest made by birds of this genus: it is built 
of nearly the same materials as the others, but is covered in 
the most tasty manner with pieces of lichens and caterpil- 
lars’ silk and spiders’ webs, which are plastered or aggluti- 
nated on over the entire surface, giving the nest the 
appearance of a large bunch of moss hanging from a forked 
twig. Several of these nests, collected in different locali- 
ties, are in my collection. They are invariably of this 
description, and are all lined with pieces of paper, wasps’. 
nest, and fine grasses. With the exception of the nest of the 
Humming-bird, and perhaps two or three of the Warblers, 
the nest of this species is the most beautiful specimen of 
