VTREONID^: Vireos 



213 



Southwestern California - 

 S. V. Apr. Sept. Common. 

 Transition Zone of mountains, 

 up to about 7000 feet. 



Arizona S.V. Transition Zone of eastern part of the State and 

 probably wherever that Zone occurs. 



Range: In summer, Rocky Mountain region from northeastern Wyom- 

 ing to mountains of Vera Cruz, Mexico. Winters in southern Mexico. 



Southwestern California - 

 Res. Fairly common. Chiefly 

 in oaks of foothills. Many 

 records from Santa Cruz Island. 



Hutton Vireo 



Southeastern Arizona Res. Lower parts of mountains and in 

 wooded canyons. Confined chiefly to the live oaks, mostly in .Upper 

 Sonoran Zone. 



