J912] Taylor: Birds and Reptiles of Northern Nevada. 329 



plants found the following indicate that zonally the locality is 

 high Transition with a Boreal infusion: Bihes cereum, Aconitum 

 colnnihianum, Pinus flexilis, Allium validum, Aquilegia trun- 

 cata and Veratrum calif ornicum. Hylocichla ustulata swainsoni, 

 Zonotrichia lencophrys leucophrys, Microtus mordax, Zapus 

 princeps oregonus, and Sorex paliistris navigator also were taken. 



Certain warm slopes nearby should probably be regarded as 

 low Transition, for while the Transition species Primus demissa 

 and Amelanchier alnifolia were present, so also was the canon 

 mouse {Peromyscus crinitus), an Upper Sonoran form. 



Mammals were more numerous at this locality than at any 

 other visited, but birds were rare. In one day during which I 

 remained in camp and kept count of those noted, only sixteen 

 individuals, made up of the following species, were seen : red- 

 shafted flickers, 2 ; Clarke nutcrackers, 3 ; Cassin purple finch, 

 green-tailed towhee, thick-billed fox sparrow, rock wren, Audubon 

 warbler, and russet-backed thrush, 1 each; and western robins, 5. 



The Duffer Peak Meadow (8400 feet; Biological Cross-section 

 Camp no. 5; see pi. 11, fig. 2). — This station, the highest made by 

 the party, was located on a rather broad, level meadow directly 

 north of Duffer Peak, and in the most extensive belt of limber 

 pines in the mountains. Snowbanks persisted here until late in 

 the summer. 



On the north side of the meadow was a tract of quaking 

 aspens. The pine-covered face of the highest peak in the range 

 rose up to the south. The dominant tree of the high pass to 

 the east was the limber pine, associated there with stunted 

 mountain mahogany. To the north, in the direction of Alder 

 Creek Lake, lay one of the principal forested areas, which was 

 interrupted to some extent by slopes of a more open character 

 immediately north of the meadow, covered by chinquapin and 

 quaking aspen. On the west were other meadows. 



The Duffer Peak meadow itself was open and grassy, a small 

 lake occupying its lowest portion. Veratrum calif ornicum was 

 perhaps the commonest plant on the meadow (see pi. 11, fig. 2). 



The pines themselves persisted to the peak, as did also Euta- 

 mias pictus and Peromyscus maniculatus sonoriensis. 



Among the species of birds secured at the locality, purple 



