In fewer words, the variations, with the region, are about as follows. Starting with North America, north of the United States, we begin with a style absolutely undistinguishable from that of Europe; this, to which the name cornuta belongs, visits the Eastern States only in winter, but breeds over the prairie region of Wisconsin, Illinois, and westward. West of the Rocky Mountains, especially south of about 40°, specimens referrible to this style are most numerous in winter, and in a large series a great percentage of the specimens entirely lack any yellow on the throat, while the pinkish-brown tints are lighter and less reddish; this style represents, in these peculiar features, the “var. bei” of Western Asia (Astrachan), and has been distinguished by the name occidentalis, McCall, though it is doubtful whether McCall’s description is of a specimen of this style or of one of chrysolæma, being
taken from a young or immature bird. Breeding south of about 40°, from the Rocky Mountains to the Pacific coast, and throughout the table-lands of Mexico,—in winter sometimes resident at the northern limit assigned, and there mixed with northern-bred individuals,—is a kind which is smaller, and, generally, with a larger bill; the throat is deeper yellow than in the northern form, the pinkish tints deepened into cinnamon, and the frontal band narrower, caused by an encroachment of the black, which, in its several areas, is extended more in proportion to the other colors. This is the E. chrysolæma of Wagl., and of which minor, Giraud, and rufa, Aud., are synonymes, as already stated.
Along the coast of Oregon and Washington Territory is a very peculiar race, represented in the collection by several specimens. These differ essentially in having the dark streaks above very sharply defined, broad and clear blackish-brown,[28] while the lower parts are strongly tinged with yellow, even as deeply so as the throat. Additional specimens from the northwest coast may establish the existence of a race as distinct as any of those named above.
Var. alpestris.
Alauda alpestris, Linn. S. N. I, 289.—Forst. Phil. Trans. LXII, 1772, 383.—Wilson,—Aud.—Jard.—Maynard, B. E. Mass. 1870, 121. Otocorys a. Finsch, Abh. Nat. 1870, 341 (synonomy and remarks). Alauda cornuta, Wils. Am. Orn. I, 1808, 85.—Rich. F. B. A. II. Eremophila c. Boie, Isis, 1828, 322.—Baird, Birds N. Am. 1858, 403.—Lord, P. R. A. Inst. IV, 118 (British Col.).—Cooper & Suckley, XII, 195.—Dall & Bannister, Tr. Ch. Ac. I, 1869, 218 (Alaska).—Cooper, Orn. Cal. I, 1870, 251.—Samuels, 280. Phileremos c. Bonap. List, 1838. Otocoris c. Auct. Otocoris occidentalis, McCall, Pr. A. N. Sc. V, June, 1851, 218 (Santa Fé).—Baird, Stansbury’s Rep., 1852, 318.
Char. Adult. Frontal whitish crescent more than half as broad as the black patch behind it. Throat and forehead either tinged, more or less strongly, with yellow, or perfectly white. Pinkish tint above, a soft ashy-vinaceous.
Measurements. (56,583 ♂, North Europe,) wing, 4.40; tail, 2.90; culmen, .60; width of white frontal crescent, .25; of black, .30. (3,780 ♂, Wisconsin,) wing, 4.20; tail, 3.00; culmen, .60; width of white frontal crescent, .30; of black, .26. (16,768 ♂, Hudson’s Bay Ter.,) wing, 4.55; tail, 3.10; culmen, .65; width of white frontal crescent, .35; of black, .36. (8,491 ♂, Fort Massachusetts,) wing, 4.35; tail, 3.15; culmen, .61; width of white frontal crescent, .27; of black, 27. (The three perfectly identical in colors.)
Young. On the upper parts the blackish greatly in excess of the whitish markings. Spots across jugulum distinct.
Hab. Northern Hemisphere; in North America, breeding in the Arctic regions and the open plains of the interior regions, from Illinois, Wisconsin, etc., to the Pacific, north of about 38°.