634 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



of rump white; bill, etc., as in adult male; length (skins), 86-102 

 (91); wing, 46-48.5 (47); tail, 26-27.5 (26.8); middle rectrices, 

 24-26 (24.8); exposed culmen, 19.5-22 (20.6). « 



Young male. — Similar to the adult female, but feathers of upper 

 parts margined terminally with pale grayish buflfy, under parts more 

 or less strongly tinged or suffused with pale buffy brownish, and 

 throat always ( ?) streaked or spotted with dusky. 



Young fernale. — Similar to the young male, but throat usually 

 immaculate or with the dusky spots or streaks smaller and less 

 distinct. 



Western United States and southern British Columbia (both sides 

 of Cascade range; Chilliwack); east to southern Alberta (?), western 

 Montana (Columbia Falls), western Colorado (La Plata Co.), and 

 western and middle Texas (Gillespie, Concho, Tom Green, San 

 Saba, Bexar, Mason, and Refugio counties) ; breeding, locally (in 

 Transition and Upper Sonoran zones), throughout its general range 

 (except in Pacific coast district from middle CaUfornia northward ?), 

 south to southern California (San Diego, San Bernardino, and River- 

 side counties), northern Lower CaHfornia (Hardy River; Rancho San 

 Antonio), Arizona (Santa Rita, Santa Catalina, and Huachuca moun- 

 tains, Tucson, Camp Lowell, Oracle, etc.), southern New Mexico (Grant 

 and Otero counties), Nuevo Leon (Montemorelos ; Monterey; Sierra 

 Madre), Tamaulipas (Jaumave), Chihuahua (San Diego), and Sonora 

 (Guaymas) ; in winter farther southward, in States of Durango (Rio 

 Setin, April), Zacatecas (Xeres, September), Sinaloa (CuHacan), 

 Jahsco (Ocotl^n, January; Plains of Colima, January), JMichoacan 

 (Querendero, August; La Salada, March), Guerrero (Venta de 

 Zopilote, October), and Mexico (City of Mexico). 



T[roc}iilus] alexandri Bourcier and Mulsant, Ann. Sci. Agric. Lyon, ix, 1846, 

 330 (Sierra Madre, Mexico). — Bourcier, Rev. Zool., 1846, 316.— Cabanis 

 and Heine, Mus. Hein., iii, 1860, 57 (Mexico). — Coues, Key N. Am. Birds, 

 2d ed., 1884, 462; 5th ed., ii, 1903, 548.— Ridgway, Man. N. Am. Birds, 

 1887, 312.— Hartert, Das Tierreich, Troch., 1900, 202. 



Trochilus alexandri Heermann, Journ. Ac. Nat. Sci. Phila., 2d ser., ii, 1852, 269 

 (near Guaymas, Sonora, breeding; Sacramento, California, breeding); Rep. 

 Pacific R. R. Surv., x, pt. iv, no. 2, 1859, 56 (Guaymas; Sacramento, Dry 

 Creek, and Cosumnes R., California). — Cassin, Illustr. Birds Cal., Tex., 

 etc., 1854, 141, pi. 22.— Gould, Mon. Troch., pt. xiv, 1857, pi. 4; vol. iii, 

 1861, pi. 132; Introd. Troch., oct. ed., 1861, 87.— Baird, Rep. Pacific R. R. 

 Surv., ix, 1858, 133; ed. 1860 ("Birds N. Am."), 133, pi. 14, fig. 3; Cat. N. 

 Am. Birds, 1859, no. 102; Rep. U. S. and Mex. Bound. Surv., ii, pt. 2, 1859, 

 6, pi. 5, fig. 3.— Xantus, Proc. Ac. Nat. Sci. Phila., 1859, 190 (Ft. Tejon, 

 California). — Sclater, Cat. Am. Birds, 1862, 297 (n. Mexico); Proc. Zool. Soc. 

 Lond., 1864, 177 (City of Mexico).— Coues, Proc. Ac. Nat. Sci. Phila., 1866, 

 56 (Colorado Desert); 1868, 82 (Tusc6n, Arizona); Check-list, 1873, no. 276; 

 2d ed., 1882, no. 410.— Cooper, Orn. Cal., 1870, 353; Proc. Cal. Ac. Sci., 1876, 



« Ten specimens. 



