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 buffy, under parts more 
or less strongly tinged or suffused with pale buffy brownish, and 
throat always (?) streaked or spotted with dusky. 
Young female.—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 Gn 
Transition and Upper Sonoran zones), throughout its general range 
(except in Pacific coast district from middle California northward %), 
south to southern California (San Diego, San Bernardino, and River- 
side counties), northern Lower California (Hardy River; Rancho San 
Antonio), Arizona (Santa Rita, Santa Catalina, and Huachuca moun- 
tains, Tucs6én, Camp Lowell, Oracle, etc.), southern New Mexico (Grant 
and Otero counties), Nuevo Leén (Montemorelos; Monteréy; Sierra 
Madre), Tamaulipas (Jaumave), Chihuéhua (San Diego), and Sonora 
(Guaymas); in winter farther southward, in States of Durango (Rio 
Setin, April), Zacatecas (Xeres, September), Sinaloa (Culiacdn), 
Jalisco (Ocotlin, January; Plains of Colima, January), Michoacén 
(Querendero, August; La Salada, March), Guerrero (Venta de 
Zopilote, October), and Mexico (City of Mexico). 
T[rochilus] alexandri BourciER and Muisant, Ann. Sci. Agric. Lyon, ix, 1846, 
330 (Sierra Madre, Mexico).—Bovrcizr, Rev. Zool., 1846, 316.—CaBanis 
and Heine, Mus. Hein., iii, 1860, 57 (Mexico).—Cours, Key N. Am. Birds, 
2d ed., 1884, 462; 5th ed., ii, 1903, 548.—Ripaway, Man. N. Am. Birds, 
1887, 312.—Hartert, Das Tierreich, Troch., 1900, 202. 
Trochilus alecandri 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, pl. 22.—Gouzp, Mon. Troch., pt. xiv, 1857, pl. 4; vol. iii, 
1861, pl. 132; Introd. Troch., oct. ed., 1861, 87—Barrp, Rep. Pacific R. R. 
Surv., ix, 1858, 133; ed. 1860 (‘‘Birds N. Am.’’), 183, pl. 14, fig. 3; Cat. N. 
Am. Birds, 1859, no. 102; Rep. U. S. and Mex. Bound. Surv., ii, pt. 2, 1859, 
6, pl. 5, fig. 3—Xanrus, Proc. Ac. Nat. Sci. Phila., 1859, 190 (Ft. Tejon, 
California).—SciaTER, Cat. Am. Birds, 1862, 297 (n. Mexico); Proc. Zool. Soc. 
Lond., 1864, 177 (City of Mexico).—Covzgs, Proc. Ac. Nat. Sci. Phila., 1866, 
56 (Colorado Desert); 1868, 82 (Tuscén, Arizona); Check-list, 1878, no. 276; 
2d ed., 1882, no. 410.—CoorsEr, Orn. Cal., 1870, 353; Proc. Cal. Ac. Sci., 1876, 
@ Ten specimens. 
