336 University of California Publications in Zoology. [Vol. 7 



Species App^vkently Breeding both in Upper Sonoran and Transition 

 IN THE Northern Nevada Region 



Birds 

 Zenaidiira macroura earolinensis Pipilo maculatus curtatus (occurred 



Myiochanes riehardsoni richardsoni only in area of zonal overlap- 



Spizella passerina arizonae pi"g) 



Spizella breweri Passerina amoena 



Melospiza melodia montana Dendroica aestiva brewsteri 



Oreoscoptes montanus 

 Planesticus migratorios propinquus 



Mammals 

 Eutamias pictus Erethizon epixanthum 



Peromyscus maniculatus sonoriensis Canis lestes 



Perognathus parvus olivaceus 



Beptiles 

 Seeloporus graciosus Thamnophis vagrans 



Species Apparently Limited to Pure Transition in the Northern 

 Nevada Region 



Birds 

 Oreortyx picta plumifera Oreospiza chlorura (possibly rang- 



Selasphorus platycercus ing into Upper Sonoran) 



Cinclus mexicanus unicolor 



Mammals 

 Citellus oregonus Microtus intermedins 



Nearly all the forms following proved to be breeding in the 

 Pine Forest Mountains. 



Species Known to Breed Elsewhere in Canadian 



Birds 



Carpodacus cassini Dendroica auduboni auduboni 



Spinus pinus Oporornis tolmiei 



Zonotrichia leucophrys leucophrys Penthestes gambeli gambeli 



Junco hyemalis thurberi Hylocichla ustulata swainsoni 



Passerella iliaea schistacea Planesticus migratorius propinquus 



Vermivora celata orestera Sialia currucoides 



Mammals 



Odocoileus hemionus Canis lestes 



Marmota flaviventer Putorius cicognani 



("allospermophilus (various species) Putorius arizonensis 



Peromyscus maniculatus sonoriensis Sorox palustris navigator 



Microtus moruax Myotis lueifugus longierus 

 Erethizon Epixanthum 



