BIRDS OV NORTH AND MIDDLE AMERICA. 



669 



Adulffemale.^hength (skins), 110-121 (114.1); wino-, 52-5-1:. 5 (53. -t); 

 tail, -IIM^^ (50.8); exposed culmen, 10.5-11 (1<>.1>); tarsus, lit. 5-21. 5 

 (20.3); middle toe, 12.5-14 (13.3).^ 



Whole of arid region of western United States; east to more west- 

 ern portions of the Great Plains (Fort Randall. South Dakota, to San 

 Antonio, Texas); north to Montana (Fort Custer, Fort Keogh, etc.), 

 Idaho, and eastern Washington (^); west to southern California (Los 

 Angeles County, etc.),'^ and northern Lower California; breeding 

 southward to northern Chihuahua (San Diego) and northern Lower 

 California (Gardner's I^aguna, Salton River); southward in winter to 

 Cape St. Lucas and Territory of Tepic, western Mexico. 



Siflrla irichas (not Turdus triduis Linnseus) Nuttall, Man. Orn. U. S. and Can., 

 1, 1832, 401, part. — Audubon, Orn. Biog., v, 1839, 463, part. 



(hvtlili/pis triclids Baird, Rep. Pacific R. R. Surv., ix, 1858, 241, part; Cat. N. 

 Am. Birds, 1859, no. 170, part; Review Am. Birds, 1865, 220, part.— XANTt>, 

 Proc. Ac. Nat. Sci. Pliila., 1859, 191 (Fort Tejon, California).— Henry, Pr.x . 

 Ac. Nat. Sci. Phila., 1859, 106 (New Mexico) .—Dresser, Ibis, 1865, 476 

 (San Antonio, Texas). — Coces, Ibis, 1865, 163, in text (Arizona); Proc. Ac 

 Nat. Sci. Phila., 1866, 69 (Fort Whipple, Arizona); Check List, 1873, no. '. , 

 part; 2d ed., 1882, no. 141, part; Birds N. W., 1874, 74, part; Birds Co.. 

 Val., 1878, 309, part.— Cooper, Orn. Cal., 1870, 95, part— Salvin, Ibis, 1872, 

 149, part (monogr. ).— Aiken, Proc. Bost. Soc. N. H., xv, 1872, 197 (Coli - 

 rado).— Merriam, Ann. Rep. U. S. Geol. Surv. for 1872 (1873), 674 (Ogden, 

 Utah; Fort Ellis, Montana), 713 (Utah).— Allen, Proc. Bost. Soc. N. I'., 

 xvii, 1874, 52 (Missouri and Musselshell rivers, w. North Dakota).— Baikd, 

 Brewer, and Ridgway, Hist. N. Am. Birds, i, 1874, 297, part.— Lawrenct, 

 Mem. Bost. Soc. N. H., ii, 1874, 269, part (Mazatlan, winter).— Hensiiaw, 

 Zool. Exp. W. 100th Merid., 1875, 204 (localities in Utah, Colorado, and 

 Arizona). — Ridgway, Orn. 40th Parallel, 1877, 434 (localities in Nevada and 

 Utah); Nom. N. Am. Birds, 1881, no. 122, part. — Salvin and Godm.\x, 

 Biol. Centr.-Am., Aves, i, 1881, 150, part. — Brewster, Bull. Nutt. Orn. 



' Eight specimens. 



Adult males from different geographic areas average, respectively, as follows: 



Locality. Wing. Tail. posed Tarsus. ^^t'l^P*^ 



Three adult males from northern Chihuahua (San Diego) .. 



Fourteen adult males from Arizona 



Two adult males from western Nevada 



One adult male from western Texas (Fort Hancock) 



Three adult males from Montana and western North Dakota. 



Si.x adult males from .southern California 



Three adult males from northern Lower California 



14.5 



l:',. 6 



14 



14 



13 



14.1 



13.7 



'■^On account of lack of suthcient material I am not alile to make out satisfactorily 

 the range of this form in California. Specimens have been examined from Alhambra 

 (April 2, September 8), Los Angeles (April 7), and Pasadena (November 23). I 

 woukl also refer to this form a specimen from Stockton (April 13) and a breeding 

 bird from Carberry's Ranch. It is possible that its range may be general throughout 

 the valleys of California, except those of the coast district from Los Angeles County 

 northward. 



