Species.
E. americana. Top and sides of head light slate; forehead tinged with greenish-yellow. A superciliary stripe, a maxillary spot, sides of breast, and middle line of breast and belly, yellow. Chin white, throat black, shoulders chestnut. Female with the black of the throat replaced by a crescent of spots. Hab. Eastern Province of United States; south to New Grenada.
E. townsendi. Body throughout (including the jugulum), dark ash, tinged with brownish on the back and wings. Superciliary and maxillary stripe, chin, throat, and middle of belly, white. A maxillary line and a pectoral crescent of black spots. No chestnut shoulders. Hab. Chester Co., Pennsylvania.
Euspiza americana, Bonap.
BLACK-THROATED BUNTING.
Emberiza americana, Gmelin, Syst. Nat. I, 1788, 872.—Wilson, Am. Orn. III, 1811, 86, pl. iii, f. 2.—Aud. Orn. Biog. IV, 1838, 579, pl. ccclxxxiv.—Ib. Syn. 1839, 101.—Ib. Birds Am. III, 1841, 58, pl. clvi.—Max. Cab. J. VI, 1858, 341. Fringilla (Spiza) americana, Bonap. Obs. Wils. 1825, No. 85. Euspiza americana, Bonap. List, 1838 (type).—Ib. Conspectus, 1850, 469.—Baird, Birds N. Am. 1858, 494.—Samuels, 327. Euspina americana, Cabanis, Mus. Hein. 1851, 133 (type). Fringilla flavicollis, Gmelin, Syst. Nat. I, 926. “Emberiza mexicana, Latham,” Syn. I, 1790, 412 (Gray). Passerina nigricollis, Vieillot. Yellow-throated Finch, Pennant, Arc. Zoöl. II, 374.
Sp. Char. Male. Sides of the head and sides and back of the neck ash; crown tinged with yellowish-green and faintly streaked with dusky. A superciliary and short maxillary line, middle of the breast, axillaries, and edge of the wing yellow. Chin, loral region, patch on side of throat, belly, and under tail-coverts white. A black patch on the throat diminishing to the breast, and ending in a spot on the upper part of the belly. Wing-coverts chestnut. Interscapular region streaked with black; rest of back immaculate. Length, about 6.70; wing, 3.50.
Female with the markings less distinctly indicated; the black of the breast replaced by a black maxillary line and a streaked collar in the yellow of the upper part of the breast.
Hab. United States from the Atlantic to the border of the high Central Plains, south to Panama and New Granada. Xalapa (Scl. 1857, 205); Guatemala (Scl. Ibis, I, 18); Turbo, N. G. (Cassin, P. A. N. S. 1860, 140); Panama (Lawr. VII, 1861, 298); Nicaragua, Graytown (Lawr. VIII, 181); Veragua (Salv. 1867, 142); Costa Rica (Lawr. IX, 103); Vera Cruz, winter (Sum. M. B. S. I, 552).
Among adult males, scarcely two individuals exactly alike can be found. In some the black of the throat is continued in blotches down the middle of the breast, while in others it is restricted to a spot immediately under the head. These variations are not at all dependent upon any difference of habitat, for specimens from remote regions from each other may be found as nearly alike as any from the same locality. Some specimens from Central America are more deeply colored than North American ones, owing, no doubt, to the freshness of the plumage.