BIRDS—PERDICIDAE—LOPHORTYX GAMBELII. 
645 
List of specimens. 
Catal. No. 
Sex. 
Locality. 
When collected. 
Whence obtained. 
Orig. No. 
Collected by— 
4477 
Willamette valley, O. T- -. 
Lt. Williamson_ 
Dr. Newberry_ 
4476 
4481 
Fort Jones, Cal_ 
_do_ 
_ do _ _ 
9395 
Bodega, Cal.. 
Jan. —, 1855 
Lt. Trowbridge_ 
T. A. Szabo_ 
5563 
O 
Petaluma, Cal._ 
E. Samuels ____ 
165 
5562 
4483 
Ran Francisco, Cal__ 
Lt. Williamson ..._ 
Dr. Newberry_ 
4239 
8 
_do_ _ 
Wint. 1855-6 
R. D. Cutts_ 
4945 
San Jose, Cal._ 
A. J. Grayson_ 
. 
9 
4936 
Q 
_..do_........ 
_do___ 
5 
9390 
$ 
Tulare valley_ 
Lt. Williamson_ 
Dr. Heermann___ 
9392 
O 
Tejon valley_ 
.do. 
Fort Tejon___ 
J. X. de Vesey_ 
9394 
San Diego, Cal_ 
Lt. Trowbridge_ 
9396 
8 
Near San Diego_ 
Ma j or Emory_.... 
A. Schott_ 
9388 
Mohave river _ 
Ma r . 14- 1854 
Tjient. Whipple__ 
183 
Kenn. and Moll__ 
LOPHORTYX GAMBELII, X u 11 a 11. 
(JambePs Partridge. 
Lophortyx gambelii, “Nuttall,” Gambel, Pr. A. N. Sc. Phil. 1,1843,260.— McCall, Pr. A. N. Sc. V, June, 
1851, 221. 
Callipeplagambelii, Gould, Mon. Odont. pi. xvii.— Cassin, Illust. I, n, 1853, 45 ; pi. ix. 
Callipepla vcnusla, Gould, Pr. Zool. Soc. XIV, 1846, 70. 
Sp. Ch. —Head with a crest of five or six purplish black feathers, about as long as the bill and head together, or a little longer. 
Upper parts, with the neck all round, and the breast, plumbeous gray ; (he shafts of the feathers brown ; those on the neck 
above and on the sides edged with same. Anterior half of head all round, with the chin and upper part of throat, and a large 
spot on the belly, black ; the forehead streaked with hoary gray. Top of the head chestnut, bordered anteriorly and laterally 
by black, immediately succeeded by an abruptly defined white stripe. A second stripe starts from the posterior corner of the 
eye and borders the black on the side of head and on the throat all round. Belly pale brownish yellow ; the sides of the body 
dark orange brown, broadly streaked centrally with white. Inner edges of tertials light brownish yellow. Tail light plumbeous. 
Female without the black and white of the head and the black of the belly, and only a slight trace of the chestnut crown ; the 
crest shorter and of fewer feathers. 
Length, 9.50 inches ; wing, 4.50 ; tail, 4.25. 
Hub. —Upper Rio Grande and Gila to the Colorado of California. 
In many specimens there is a fine mottling on the outer surface of the wings, and an appear¬ 
ance of the same on the gray of the breast and hack, but this latter is merely an optical illusion. 
The feathers on the forehead are stiff and bristly, their central portions or shafts are black ; 
the lateral filaments hoary gray, although the general effect is nearly black. 
This fine species belongs chiefly to the Rocky mountain region, from the Upper Rio Grande 
to the Colorado river. It is found as far north on this river as the parallel of 36°, and is very 
abundant in Sonora. In the limits assigned it appears to replace the L. californicus , which is 
peculiar to the western slope. 
