BREWSTER: BIRDS OF THE CAPE REGION, LOWER CALIFORNIA. 177 
albatus, the type locality of the new form being Pasadena, California.! I have 
seen no specimens from this precise locality, but I have a number from River- 
side, which, 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 flanks, but these differences (they are the chief ones claimed 
by Mr. Grinnell) do not seem tc me sufficiently pronounced or constant to 
warrant the formal separation of the birds in question. 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, 
winter, 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 November; and the remaining nine at San José 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 May 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” 
about 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 Vireo 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 Cougs. 
GRAY VIREO. 
Mr. Frazar killed a Gray Vireo at Triunfo the first week of April and an- 
other at San José del Cabo on November 10. These specimens are the only 
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.” 4 
1 Condor, III. 1901, 187. 
2 Anthony, Auk, XII. 1895, 142. 
3 Anthony, Zoe, IV. 1895, 244. 
4 Bryant, Proc. Calif. Acad. Sci., 2d ser., II. 1889, 508. 
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