PLATE 17 



a. Eidge diieetly east of Half Dome ; altitude 7500 feet, in the Canadian Zone. The 

 trees are chiefly Jeflfrev pine and in them are to be found the Sierra Grouse, Audubon 

 Warbler, Short-tailed Mountain Chickadee, Sierra Creeper and Eed-breasted Nuthatch. 

 The low brush is huckleberry oak and this affords shelter to the Allen Chipmunk and 

 ^Mountain Alligator Lizard. Photo by Ansel F. Hall. 



h. Forest association in Canadian Zone one mile east of Chinquapin; altitude 7000 

 feet. The trees are lodgepole pine, white fir, and red fir. Birds noted here were Calliope 

 Hummingbird, Hammond Flycatcher, Blue-fronted Jay, Cassin Purple Finch, Pine 

 Siskin, Audubon Warbler, Short-tailed Mountain Chickadee, Eed-breasted Nuthatch, and 

 C4olden-crowned and Euby-crowned kinglets. Mammals included the Tahoe Chipmunk, 

 Sierra Flying Squirrel and Sierra Chickaree. 



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