DESCRIPTION AND TECHNICAL OBSERVATIONS.

Genus Emberiza. Linnæus, Syst. Nat., I. p. 308. (1766.)

Emberiza bilineata. Cassin, Proc. Acad., Philada., V. p. 104. (Oct. 1850.)

Form. Rather short and compact; fourth quill slightly longest, but nearly equalled by the third and fifth; legs rather long and robust; tail moderate.

Dimensions. Total length, about 5⅛ inches; wing, 2½; expanse from tip to tip, 8; tail, 2⅜ inches.

Colors. Adult.—Superciliary stripe over the eye, and another from the corner of the lower mandible, white. Large space on the throat and neck before black, which is also the color of the lores. Cheeks and entire upper parts brownish-cinereous, darker, and tinged with olive on the back; quills hair-brown, with nearly white external edgings; tail feathers brownish-black, the two central palest, and the external feather, with its outer web, white, and with a large spot of white on its inner web, near the tip,—in some specimens the two outer tail feathers are largely tipped with white. Entire under parts white, tinged with ashy and olive, especially on the sides and flanks; bill dark bluish or horn color; feet dark. Young.—Throat and other under parts white, with some longitudinal stripes of brownish-black; upper parts as in adult, but more tinged with brown; wing-coverts edged with brownish-white.

Hab. New Mexico and Texas; Mexico. Spec. in Mus. Acad., Philada., and Nat. Mus., Washington city.

Obs. This Finch resembles no other species known to us, in such a degree as would render it liable to be confounded with it. It may be easily recognised when adult by its black throat, bordered on each side by a conspicuous white stripe, and having also another equally conspicuous and well-defined stripe over the eye. In the young there is no vestige of the black throat, that part being of a uniform color with the under parts of the body, but bears a strong general resemblance to the adult. It is related to the group designated Euspiza by authors, though it is probably the type of a distinct subdivision.

Plate 24
The Black-headed Vireo
Vireo atricapillus (Woodhouse)

VIREO ATRICAPILLUS.—Woodhouse.
The Black-headed Flycatcher.
PLATE XXIV.—Adult Male.

On account of their modest attire and sylvan habits, the birds of the group to which the present species belongs, are seldom noticed by the general observer, though some of them are to be met with commonly during the summer, in nearly all parts of the United States. But though inconspicuous in appearance, they make ample compensation by the loudness of their notes, which, after the early love-songs of the Thrushes, and other of our songsters of spring, have subsided into the more serious duties of parental responsibility, are to be heard above those of any other of our resident birds. They are active insect-catchers, and may be seen at nearly all hours of the day, patiently searching amongst the leaves and branches of the trees in almost every woodland, hopping from branch to branch, or sometimes making short sallies in pursuit of fugitive moths or butterflies, and occasionally pausing to refresh themselves with a rather quaint but very melodious warble, lengthened in the spring into a cheerful and agreeable song.

The red-eyed Flycatcher (V. olivaceus) is the most numerous, and not only is constantly to be met with in the woods, but ventures confidently into the public squares or parks, and the yards and gardens of the cities. In many such localities in Philadelphia, several of which are in the denser parts of the city, this little warbler rears its young, and pipes out his sprightly song, in entire security, and apparently feeling himself as much at home as if in the recesses of the most remote forest. The warbling Flycatcher (V. gilvus) is another pleasing singer, though in our opinion but an indifferent performer compared with the preceding. A species common in the West Indies, and which has been found in Florida, has some very singular notes, from one combination of which he has had assigned to him a name quite as singular, the “Whip Tom Kelly” (V. altiloquus).

The immediate relatives, however, of the little species before the reader in the present plate, are birds that rarely venture far from the woods. One of them, the White-eyed Flycatcher (V. noveboracensis), has a partiality for marshes and low grounds producing thick growths of vines and shrubbery; and although the smallest of his tribe has some quite remarkable notes, and so loud, that a person not sufficiently acquainted with him to recognise his voice, would be surprised to find such a high-sounding solo proceed from such a diminutive performer.

The species represented in our present plate is an inhabitant of Texas, but it has as yet been only observed in a very limited district. It was discovered by S. W. Woodhouse, M. D., of Philadelphia, while attached to Capt. Sitgreave’s Surveying party. It is the handsomest bird of this group.

The following notice of this bird by Dr. Woodhouse, we take the liberty of extracting from Sitgreave’s report of an expedition down the Zuñi and Colorado rivers:

“On the twenty-sixth of May, 1851, while encamped on the Rio San Pedro, within about ten miles of its source, I was out in pursuit of specimens. Wandering about the hills among some cedars (Juniperus), my attention was first attracted by a singular note, which I am unable to describe; on looking, I discovered this beautiful little bird, which I at first took to belong to that interesting family of fly-catching warblers, Sylvania, it being constantly in motion. It was with the greatest difficulty that I could procure specimens; two, however, I secured, both of which, on dissection, proved to be males.”

Mr. John H. Clark, zoologist attached to the Mexican boundary commission, who observed this species in Texas, and near the same locality at which it was found by Dr. Woodhouse, has very obligingly made for us the following note from his journal:

“My attention was drawn to this bird by a shrill, discontented chirp which accompanied its incessant motion in pursuit of insects. Three specimens only were seen, and all of them at one locality, near the head of the Rio San Pedro, or Devil’s River, to the valley of which it appeared to be confined, for, being aware of its novelty to the fauna of the United States, I kept a strict look-out, but did not meet with it elsewhere.

“It was not at all shy, showing no concern when approached within a few rods. The procuring of a specimen was, however, a matter of some difficulty, as its constantly hopping or flying from branch to branch rendered an unobstructed shot the next thing to an impossibility. It was found in June, and the specimen obtained by me, now in the collection of the commission, is that of a male.”

Our figure is of the natural size.