BREWSTER : BIRDS OF THE CAPE REGION, LOWER CALIFORNIA. 177 



albatus, the type locality of the new form being Pasadena, California.^ 1 have 

 seen no specimens from this precise locality, but I have a number from Kiver- 

 siile, wliich, as far as I can discern, are indistinguishable from the breeding 

 birds obtained in the Cape Region by Mr. Frazar. My skins from Arizona 

 and Oposura, Mexico, are, as a rule, somewhat deeper colored, with more 

 greenish on the tianks, but these differences (they are the chief ones claimed 

 bv Mr. Gnnnell) do not seem to me .-sufficiently pronounced or constant to 

 •warrant the formal separation of the birds in t^uestion. If they be recognized 

 as distinct races, however, I feel very sure that the bird of the Cape Region 

 should be referred to albatus and not, as Mr. Grinnell appears to think, to the 

 typical form. 



The Least Vireo is known to occur in the Cape Region only during autumn, 

 tv-inter, and spring. Mr. Belding characterizes it as rare, but Mr. Frazar's col- 

 lection contains no less than fourteen specimens. Of these, two were killed at 

 Triunfo on April 20 and 21 respectively ; three at Santiago in the latter part 

 of Novemljer; and the remaining nine at San Jose del Cabo at various dates 

 between August 30 and November 11. Mr. Bryant "obtained specimens on 

 Santa Margarita Island in winter, and found them in I\Iay at San Fernando; 

 at Comondu in March; at San Benito in April, and at El Rosario, May 21, 

 1889." " Mr. Anthony found it common in willow thickets on the northwest 

 coast up to 3,000 feet altitude. Nesting from 500 to 2,500 feet altitude" 

 (Bryant); "quite common and evidently nesting in the mesquite thickets" 

 al)out the mission at San Fernando,'-' and " very common all along the base 

 of the mountain, but probably not reaching above the live oaks at 4500 feet," 

 on San Pedro Martir.^ 



In California, the Least Yireo is a common summer resident to a little north 

 of the latitude of San Francisco. It is also found in Arizona and is said to 

 range throughout western Mexico, although my collectors have obtained it only 

 at Oposura, in the province of Sonora. 



Vireo vicinior Coces. 



Gray Vireo. 



Mr. Frazar killed a Gray Vireo at Triunfo the first week of April and an- 

 other at San Jose del Cabo on November 10. These specimens are the oidy 

 ones that have been thus far found in the Cape Region, but further to the north- 

 ward in Lower California, Mr. Belding has "noted them from .south of Campo, 

 at an altitude of 3,000 feet in May, 1884 ; near San Rafael in May, 1885, and 

 the mountains east of Ensenada in April, 1887." * 



1 Condor, IIL 1901, 187. 



2 Antliony, Auk, XII. 1805, 142. 



3 Anthony, Zoe, IV. 1893, 244. 



* Bryant, Proc. Calif. Acad. Sci., 2d ser., II. 1889, 308. 



VOL. XLI. NO. 1 12 



