BREWSTER: BIRDS OF THE CAPE REGION, LOWER CALIFORNIA. 195 



As Dr. Mearns has recently pointed out, Mimas pohjglottos leucopterus is an 

 excellent subspecies, differing very apprecialjly, as well as constantly, from 

 true pohjglottos in having the general coloring of the upper parts less grayish 

 (more drab) ; the under parts whiter posteriorly, and more strongly tinged 

 with clay color on the throat and breast ; the white markings on the winga 

 much more extended and conspicuous ; the general size larger, but the tail 

 relatively shorter. In respect to all these characters the numerous specimens 

 obtained in the Cape Region by Mr. Frazar are apparently typical of leucopterus. 

 Professor Baird thought that the birds of this region have shorter tails than 

 those found in California, but I find the reverse to be the rule, although the 

 difference is neither marked nor constant. 



The Western MockingViird occurs throughout Lower California, and is 

 probably resident wherever found. Mr. Belding characterizes it as "abun- 

 dant " in the Cape Region. Mr. Frazar's experience does not corroborate 

 this, for he says : " While most numerously represented at San Jose del Cabo, 

 it cannot be called a common bird either there or about La Paz, and at Tri- 

 unfo I found it rather rare. It is very generally distributed over the low 

 country, but it was not seen by me at all on the higher mountains." 



Mr. Bryant affirms that this Mockingbird is " everywhere common " on the 

 portions of the Peninsula which he visited. It is not known to occur north of 

 California, and in that State is found regularly and commonly only in the 

 central and southern portions. It inhabits nearly the whole of Mexico, except- 

 ing the higher mountain regions, as far south as the Isthmus of Tehuantepec. 



Toxostoma cinereum (Xantus). 

 St. Lucas Thrasher. 



Harporhf/nchus cinereits Xantus, Proc. Acad. Nat. Sci. Pliila., 1859, 298 (orig. 

 descr. ; type from Cape St. Lucas). Baird, /bid., 301 (Cape St. Lucas), 303 

 (crit. : Cape St. Lucas) ; Rev. Amer. Birds, pt. I. 1864, 46, 47 (descr. ; Cape 

 St. Lucas). SCLATER, Cat. Amer. Birds, 1862, 8 (Lower Calif.). Elliot, 

 lilustr. New and Unfig. N. Amer. Birds, I. 1869, pi. 1 (descr.). Cooper, 

 Orn. Cal., 1870, 19 (descr. ; figures head ; Cape St. Lucas). Coces, Check 

 List, 1873, 7, no. 12; 2d ed., 1882, 25, no. 22; Birds Col. Valley, 1878, 68, 

 69, fig. 11 (descr.; crit.). Baird, Brewer, and Ridgwat, Hist. N. Amer. 

 Birds, I. 1874, 40, 41, pi. 4, fig. 2 (descr. bird, nest, eggs, and habits ; crit.). 

 Sharpe, Cat. Birds Brit. :\rus., VL 1881, .355, 3-56 (descr.; La Paz). Ridg- 

 WAY, Nom. N. Amer. Birds (Bull. U. S. Nat. Mus., no. 21), 1881, 12, 60, 74, 

 no. 14. Belding, Proc. U. S. Nat. Mus., VL 1883, .345 (Cape Region). A. 

 0. U., Check List, 1886, .324, no. 709. Bryant, Proc. Calif. Acad. Sci., 2d 

 ser., II. 1889, 314 (Cape Region ; Comondu to San Quintin). Townsend, 

 Proc. U. S. Nat. Mus., XIII. 1890, 136 (Cape St. Lucas). Allen, Auk, X. 

 1893, 142 (tropical type). 



[Mimus] cinereus Gray, Handdist, I. 1869, 263, no. 3,850. 



