α. A black stripe from the eye to forehead, across lore. Hab. Eastern Province of North America, west throughout Rocky Mountains; Cape St. Lucas in winter … var. leucophrys.
β. No black streak in front of eye, the lores being wholly ashy. Hab. Western Province North America, east to Rocky Mountains … var. gambeli.
2. Z. coronata. Median stripe of crown yellow for anterior and ash for posterior half. Black of crown coming down to eye and ear coverts, leaving no light superciliary stripe. Hab. Pacific Province of North America; accidental east of Sierra Nevada.
b. Throat pure white, in sharp contrast with the dark ash of cheeks and jugulum.
3. Z. albicollis. Median stripe of crown white. A light superciliary stripe, yellow anterior to the eye, and white behind it; a black streak along upper edge of ear-coverts. Hab. Eastern Province of North America.
B. Black of the crown not divided, but continuous. Jugulum white.
4. Z. querula. Lores, forepart of cheeks, with the chin and throat, deep black; whole side of head behind the eye, ashy. Lower parts pure white. Hab. Missouri Plains.
Zonotrichia leucophrys, Swainson.
WHITE-CROWNED SPARROW.
Emberiza leucophrys, Forster, Philos. Trans. LXII, 1772, 382, 426.—Gmelin, Syst. Nat. I, 1788, 874.—Wilson, Am. Orn. IV, 1811, 49, pl. xxxi, f. 4. Fringilla (Zonotrichia) leucophrys, Sw. F. B. Am. II, 1831, 255. Zonotrichia leucophrys, Bon. List, 1838.—Ib. Consp. 1850, 478.—Baird, Birds N. Am. 1858, 458, pl. lxix, f. 2.—Coues, P. A. N. S. 1861, 224.—Maynard, Birds E. Mass. 1870, 118.—Cooper, Orn. Cal. 1, 196.—Samuels, 309. Fringilla leucophrys, Aud. Orn. Biog. II, 1834, 88; V, 515, pl. cxiv.—Ib. Syn. 1839, 121.—Ib. Birds Am. III, 1841, 157, pl. cxcii. ? Spizella maxima, Bonap. Comp. Rend. 1853 (either this or Z. gambeli). White-crowned Sparrow, Pennant.