168 CHECK-LIST OF NORTH AMERICAN BIRDS. 



[B 47 2, C 3 8 9 , R 480 ,0573.] 

 HAB. Southern and Western Texas, north to Western Kansas. 



290. Colinus graysoni (LAWR.). 



Grayson's Bob-white. 



Or tyx graysoni LAWR. Ann. Lye. N. Y. VIII. May, 1867, 476. 

 Colinus graysoni STEJN. Auk, II. Jan. 1885, 45. 



[B -, C -, R - C -.] 

 HAB. Mexico, north into Southern Arizona. 



291. Colinus ridgwayi BREWST. 



Masked Bob-white. 



Colinus ridgwayi BREWST. Auk, II. April, 1885, T 99 



[B - C -, R - C -.] 

 HAB. Mexican border of Arizona and southward. 



GENUS OREORTYX BAIRD. 

 Oreortyx BAIRD, B. N. Am. 1858, 642. Type, Ortyx picta DOUGL. 



292. Oreortyx pictus (DOUGL.). 



Mountain Partridge. 



Ortyx picta DOUGL. Trans. Linn. Soc. XVI. 1829, 143. 

 Oreortyx pictus BAIRD, B. N. Am. 1858, 642. 



[B 473, C 390, R 4Si, C 574.] 



HAB. Washington Territory, Oregon, and northern coast region of 

 California. 



2920. Oreortyx pictus plumiferus (GOULD). 



Plumed Partridge. 



Ortyx plumif era GOULD, P. Z. S. 1837, 42. 



Oreortyx pictus var. plumiferus RIDGW. in Hist. N. Am. B. III. 1874, 

 476. 



[B C , R 4810,0 .] 



HAB. Sierra Nevada, and southern coast ranges of California to 

 Cape St. Lucas. 



