PLATE 14 



a. Scene near Pleasant Valley in May showing mixed brush and open forest associa- 

 tions in the Upper Sonoran Zone. The principal tree is the digger pine. Here on the 

 gro-iud weie caught the Streator Wood Eat, Common and Boyle white-footed mice, and 

 Digger Pine Pocket Gopher ; the trees were inhabited by such birds as the Interior 

 California Jay, Pacific Black-headed Grosbeak, and Western Gnatcatcher; and in the 

 greasewood brush (Adenostoma) topping the ridge were the Bell Sparrow, Northern 

 Brown Towhee, California Thrasher, and Pallid Wren-tit. 



/;. A'iew near the McCarthy ranch, three miles east of Coulterville; altitude 3200 feet, 

 at the lower edge of the Transition Zone. Trees shown are yellow pines, and the brush 

 plants are sticky nianzanita {ArcloslaiilnjJns uniriiiosit) . I'hotographed in June, 191.5. 



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[(i72] 



