PLATE 14 



((. Scene near Ploasaut Valley in May sliowiny niix(>(l Inuth and open forest at^soeia- 

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

 ground were 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 Gnateateher; and in the 

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

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



h. View 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 bru'^h 

 plants are sticky manzanita {Arctostophi/los mariposa). Photographed in June, 191.>. 



