15^12] Taylor: Birds and Reptiles of Northern Nevada. 337 



Species in Other Regions Apparently Most Common in Canadian or 

 Above During the Period op Reproduction 



(Found locally in the Transition of the Pine Forest Mountains) 



Birds 

 Nucifraga Columbiana Zonotrichia leucophrys leucophrys 



Spinus pinus Hylocichla ustulata swainsoni 



Ma7nmals 

 Marmota flaviventer Putorius arizonensis (may be more 



Microtus niordax (in some regions common in Transition) 



occurs in Transition also) Sorex palustris navigator 



Putorius cicognani 



The following birds occur commonly during the breeding 

 season above Canadian, and breed in the Pine Forest Mountains. 



Species Known to Breed in Hudsonian in Other Regions 



Hylocichla ustulata swainsoni Zonotrichia leucophrys leucophrys 



Nucifraga columbiana 



The small collection of plants leads to much the same conclu- 

 sions that the faunal lists indicate. Only those species are here 

 listed which have been used by other authors as life zone indi- 

 cators. 



Plants Occurring Elsewhere in Upper Sonoran and Found at Quinn 

 River Crossing and Big Creek Ranch (Upper Sonoran) 



Artemisia tridentata Tetradymia spinosa 



Artemisia spinescens Grayia spinosa 



Sarcobatus vermiculatus 



Plants Occurring Elsewhere in Transition and Found at Quinn River 

 Crossing and Big Creek Ranch (Upper Sonoran) 



Poa buckleyana Artemisia tridentata 



Vicia americana Alnus tenuifolia (along stream at 



Chrysothamnus viscidiflorus torti- Big Creek Ranch) 



folius AchiUaea millefolium lanulosa 

 Populus tremuloides (mouth of (along stream at Big Creek 



canon) Ranch) 



Castilleia parvi folia (foothills) 



Plants Occurring Elsewhere in the Sonoran Zones and Found in the 

 Pine Forest Mountains 



Cercocarpus ledi folius (found on Artemisia tridentata (found from 



certain ridges from 7000 to 4100 to 9400 feet altitude) 



8800 feet) 



