among the low bushes in search of berries, accompanied by its young,
and at that time enters the orchards and gardens even of our villages and
cities. It arrives in Pennsylvania and New Jersey about the end of
April, and in Massachusetts and Maine about a month later.
The nest of the Yellow-throated Vireo is truly a beautiful fabric. It sometimes extends to five or six inches in depth, and as it is always placed at the extremity of small twigs, it is very conspicuous. It is attached to these twigs with much care by slender threads of vines, or those of other trees at its upper edges, mixed with the silk of different caterpillars, and enclosed with lichens, so neatly attached by means of saliva, that the whole outer surface seems formed of them, while the inner bed, which is about two and a half inches in diameter, by an inch and a half in depth, is lined with delicate grasses, between which and the bottom coarser mate- rials are employed to fiU the space, such as bits of hornets"' nests, dry leaves, and wool. The eggs, which are four or five in number, are of an elongated form, white, spotted with reddish-brown or black. The young- are out about the beginning of July. In Maine it raises one brood only, but farther south not unfrequently two.
Vireo flavifeons, Ch. Bonaparte, Synops. of Birds of the United States, p. 70- Yellow-throated Flycatcher, Wils. Amer. Ornith. vol. ii. p. 117, pi. ?• fig- 3. Yellow-throated Vireo, Nuttall, Manual, vol. i. p. 302.
Adult Male. Plate CXIX.
Bill of moderate length, broad and depressed at the base, compressed towards the tip, acute ; upper mandible with the sides convex, the edges sharp, the tip deflected ; lower mandible straight, the back rounded, the edges sharp, the tip acute. Nostrils basal, lateral, oblong. Head rather large, neck short, body robust. Feet of ordinary length ; tarsus com- pressed, anteriorly scutellate, sharp behind ; toes slender, free ; claws slightly arched, compressed, acute.
Plumage soft and blended. Wings of ordinary length, the second and third primaries longest. Tail of ordinary length, emarginate. Basirostral bristles short.
Bill brownish-black above, the greater part of the lower mandible pale blue, the tip dusky. Iris dark brown. Feet lead-colour. The vipper parts of a deep greenish-olive, the quills and coverts deep brown, the latter tipped with white, the primaries and some of the secondaries
