BIRDS — PERDICIDAE LOPHOETYX GAMBELII. 



645 



Catal. No. 



4477 



4476 



4481 



9395 



6563 



5562 



4483 



4239 



4945 



4936' 



9390 



9392 



9394 

 9396 

 9388 



List of specimens. 



Loeality. 



Willamette valley, 0. T. 

 do 



When collected 



Whence ohtained. 



Lt. Williamson. 



do 



do 



Orig. Ko. 



Collected by- 



Dr. Newberry. 

 do 





Q 

 S 

 9 



Fort Jones, Cal . 



Bodega, Cal 



Petaluma, Cal.. 

 , do 



San Francisco, Cal. 



do 



San Jos&, Cal 



do 



Tulare yalley 



Tejon valley 



Fort Tejon 



San Diego, Cal. . 

 Near San Diego , 

 Mohave river . . 



Jan. — , 1855 



Lt. Trowbridge. 

 E.Samuels. 



.do. 



Wint. 1855-'6 



Lt. Williamson . 



E. D. Cxitts 



A. J. Grayson.. 

 do 



Mar. 14, 1854 



Lt. Williamson. 

 do 



J. X. de Vesey. . 

 Lt. Trowbridge. 



Major Emory 



Lieut. Whipple. 



-do. 



T. A. 



165 



Dr. Newberry. 



Dr. Heermann. 

 do 



183 



A. Schott 



Kenn. and Moll. 



LOPHOETYX GAMBELII, N u 1 1 a 11 . 



Gambel's Partridge. 



Lophortyx gambelU, "NniTALL," Gambel, Pr. A. N. Sc. Phil. 1,1843, 260.— McCall, Fr. A. N. Sc. V, June, 



1851, 231. 

 Callipepla,gambelii, Gould, Mon. Odont. pi. xvii. — Casbin, lllust. 1, n, 1853, 45 ; pi. ix. 

 Callipepla vermsta, Gould, Pr. Zool. Soo. 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 ; the 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. 



Uab. — 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 back, 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 Eocky mountain region, from the Upper Eio 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. 



