piuns — rFRniciDAR — lopuortyx oamiiklii. 



rA5 



List of specimens. 



Catul. No. 



4477 

 4476 

 448 1 

 9395 

 &S63 

 S562 

 44S3 

 4239 

 4945 

 4936 

 9390 

 9392 



9394 

 9396 

 9388 



&.■!. 



Loaility. 



When collected. 



Whouco obtained. 



Oiig. No.| Collected by— 



Willnmetto valley, O.T...! Lt. Willinmiion. 



do... I do 



Dr. Newberry. 

 do 



9 

 S 

 Q 



Fort Jones, Cnl _ do 



.! Bodega, Ciil j Jan. —,1855 



Petitluma, Od. 

 do 



.do. 



Lt. Trowbridge T. A. Szabo. 



K. SamiielB . 

 do... 



San Francisco, Cal. 

 do 



San Jos6, Cal 



do 



Tulare valley 



Tejon valley 



Fort Tejon 



San Diego, Cal 



Near S;in Diego 



Mohave river 



Wint. 1855-'6 



Mar. 14, 1854 



Lt. Williamson . 



R. D. Cutts 



A. J. GravBon.. 



do 



Lt. William.son. 



do 



J. X. de Vesey.. 

 Lt. Trowbridge. 



Major Emory 



Lieut. Whipple. 



165 



Dr. Newberrv- 



Dr. Heermann. 

 do 



183 



A. Scliott 



Kcnn. and Moll. 



LOPHORTYX GAMBELII, N u 1 1 a 1 1 . 



Gambel's Partridge. 



Lophortyx gambelii, "Nuttali.," Gambel, Pr. A. N. Sc. Phil. 1, 1843, 260.- McCai.i., I'r. A. N. Sc. V, June, 



1851, 221. 

 Callipepla gamhelii, Goild, Mon . Odont. pi. xvii. — Cassin, Ulust. I, ii, IS-IS, 45 ; pi. ix. 

 CalUpepla renusta, Gould, Pr. Zool. Soc. XIV, 1846, 70. 



Sp. Oil. — Head with a crest of five orsix purplish black feathers, about as long as the billand head together, or alillle longer. 

 Upper parts, with the neck all round, and the breast, plumbeous gray ; the shafts of the feathers brown ; those on the nock 

 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 slripo 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 l)rownish 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 witliout 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. 



llah. — I'pper 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 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 30°, and is very 

 abundant in. Sonora. In the limits assigned it appears to replace the L. ccdi/ornkus, which is 

 peculiar to the western slope. 



