PLATE 17 



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

 trees are chiefly Jeffrey 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. 



b. Poorest 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, Bed-breasted Nuthatch, ami 

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

 Sierra Flying Squirrel and Sierra Chickaree. 



