THE HUMMING BIRDS. 331 



two birds; and it seems to me that, ia the absence of strnctural char- 

 acters, as well as those of coloration (further than the slight one noted), 

 suggesting hybridism between C. anna or any other sj)ecies, T. viola- 

 jugulum may properly be regarded as a distinct species until more de- 

 cided evidence to the contrary is obtained. 



Fig. 47. — Outer tail feathar.s of (l) Oahjpte anna, (2) Trochilus eoluhrig, (3) T. violajur/lum, and 



(4) T. alexandri. 



Black-ciiinneo Humming Bird. Trochilus alexandri BouRC. and Muls. 



Trochilus alexandri BoURC. and Muls., Auu. Soc. d'Agric. de Lj'on, ix, 1846, 330. — 

 Cass., Illustr. B. Cal. &c. i, 1854, 141, pi. 22.— Gould, Hon. Troch. pt. xiv, 1857, 

 pi. 4 ; Tol. HI, 1861, p^. 132.— Cooper, Oni. Cal. i, 1870, 353.— B. B. and R., Hist. 

 N. Am. B. II, 1874, 450, pi. 47, fig. 1. 



Alexandre's Hnnimiug Bird. 



Purple-tliroafed Humming Bird (Gould, Cassin). 



L'Ornismye d' Alexandre (Mulsant and Verreaux). 



Cbnpamirto de peclio inorado (D'Oca). 



Range. — Western United States, between Rocky Mountains and Pa- 

 cific coast; east to central Texas and Uintah MountaiDS, Utah; north 

 to latitude 49^, in British Columbia, between Cascade and Rocky Moun- 

 tains ; breeding as far south as Gnaymas, Sonora ; wintering in west- 

 ern, central, and southern Mexico. 



Sp. Chak. — Adult male: Chin and throat opaque velvety black, 

 bordered below by a broad band of metallic violet, changing to green 

 and blue; tail slightly forked or emargiuated (depth of fork only about 

 0.10 of an inch); length abont 3.30-3.75, wing 1.70-1.75, tail 1.20-1.25, 

 culmen 0.70-0.75. Adult female: Tail much rounded, the middle feath- 

 ers abont the longest; ])lnmage not essentially different from that of 

 female T. colubris ; length about 3.90-4.10, wing 1.90-2.00, tail 1.20-1.35, 

 culmen .78-.90. Young: Similar to adult female, but feathers of upper 

 parts margined terminally with light bnffy or pale rusty, the male with 

 throat streaked with dusky. 



Adult male {'^o. 117256, Pinal County, Arizona, April 9, 1885; W. 

 E. D. Scott) : Above very dull bronze-green, the top of the head more 

 dusky and quite destitute of metallic gloss on forehead; remiges dusky 

 slate, slightly glossed with purple; rectrices (except middle pair) pur- 

 plish black, margined terminally with dull bronze-green, this most 

 extensive on lateral feathers. A small white spot behind eye. Chin, 

 upper half of throat (for about .45 of an inch from point of chin), sub- 

 orbital region, and ear-coverts, opaque velvety black ; lower part of 



