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 UNIVERSITY OF CALIFORNIA PUBLICATIONS Cornell University 



IN ataca. JVew yoffc i^s^o 



ZOOLOGY 



Vol. 7, No. 10, pp. 319-436, plates 7-12 February 14, 1912 



FIELD NOTES ON AMPHIBIANS, REPTILES 



AND BIRDS OF NORTHERN HUMBOLDT 



COUNTY, NEVADA, 



WITH A DISCUSSION OF SOME OF THE PAUNAL 

 FEATUEES OF THE REGION 



BY 



WALTER P. TAYLOR 

 (Contribution from the Museum of Vertebrate Zoology of the University of California) 



CONTENTS 



PAGE 



Introduction 319 



Itinerary 321 



Descriptions of Localities 322 



The Life Zones of the Pine Forest Mountain Region 333 



Discussion of Life Zones 338 



Check-lists of Species Recorded by the Nevada Expedition 340 



General Observations of the Species 342 



The Amphibians 342 



The Reptiles 346 



The Birds 356 



Literature Cited 423 



Explanation of Plates 426 



INTRODUCTION 



In order to progress toward the ultimate solution of the 

 problems in the field of biology, it is essential that increasingly 

 accurate and comprehensive observations of living forms, both 

 in a state of nature and under experimental conditions, be carried 



