FRINGILLID^E : Finches, Sparrows, etc. 



187 



Southern California S.V. 

 Upper Sonoran Zone; open, 

 brushy hillsides and mesa to 

 around 7000 feet. Fairly com- 

 mon where found at all, but 

 such localities are widely sep- 

 arated. 



Arizona Recorded rarely. 



Southern California Res. 

 In summer, Transition and 

 Boreal Zones of mountains. 

 Nests on the ground, usually in 

 marshy spots. Flocks in winter, 

 at low levels, at this season HThurber dunco 

 straying to southern Arizona. 



Note the light lower mandible of the Arizona and Red-backed, resident 

 birds; while the Pink-sided, with bill all light, and the dark-billed Gray- 

 headed Junco are winter visitants only. The black-headed forms, the 

 Thurber and Shufeldt, also occurring in eastern Arizona in winter, are not 

 separable from each other in the field. 



Eastern Arizona W.V. 

 Common. In mixed flocks of 

 various species of Juncos. Re- 

 corded as favoring lower parts 

 of mountains of its winter range. 



Finn sided dunco 



