324 OBERHOLSER, Notes on N. A. Birds. II. [jute 
Mountains of northwestern Mexico and contiguous portion of the 
southwestern United States; north to southwestern New Mexico 
and southern Arizona; west to Sonora; south to Sonora and 
Chihuahua; and east to Chihuahua and southwestern New Mexico. 
The range of Beolophus wollweberi wollweberi is consequently 
restricted to the mountains of central and southern Mexico, north 
to Zacatecas and Durango, and south to Vera Cruz, Puebla, and 
Oaxaca. 
Geothlypis trichas brachidactyla (Swainson). 
This race of Geothlypis trichas was first properly distinguished 
by Mr. William Palmer,! although the 7'richas brachidactylus of 
Swainson,” based on birds from the northern provinces of the 
United States, is its earliest name. It has in recent years been 
generally discredited, possibly on account of the difficulty in dis- 
tinguishing worn specimens; but with the proper material from 
typical sources, it may be easily recognized. It differs from 
Geothlypis trichas trichas in its larger size, and, in the male, by 
reason of its more greenish upper surface, more whitish frontal 
band of gray, more extensively yellow posterior lower parts, and 
its usually more brownish flanks. The female is similar to that of 
Geothlypis trichas trichas but is larger, more greenish above, and 
slightly paler. 
The geographic range of Geothlypis trichas brachidactyla includes 
the northeastern United States and southeastern Canada; the 
bird breeding north to Newfoundland, central Quebec, northern 
Ontario, northern Minnesota, and northeastern North Dakota; 
west to central North Dakota and central Nebraska; south to 
northeastern Kansas, southern Illinois, southern Indiana, Ohio, 
northern Pennsylvania, and northern New Jersey; and east to 
the Atlantic coast from northern New Jersey to Nova Scotia and 
Newfoundland. It winters south to the Bahama Islands, Cuba, 
Jamaica, Swan Island in the Caribbean Sea, Costa Rica, Nicaragua, 
Guatemala, southern and eastern Mexico. 
1 Auk, XVII, July, 1900, pp. 221, 226-228. 
2 Anim. in Menag., 1838, p. 295. 
