UNITED STATES DEPARTMENT OF AGRICULTURE 

 BULLETIN No. 794 



Contribatton from the Bureau of Biological Sorrey 

 E. W. NELSON, Chief 



Washington, D. C. PROFESSIONAL PAPER March 23, 1920 



WATERFOWL AND THEIR FOOD PLANTS IN 

 THE SANDHILL REGION OF NEBRASKA, 



Part I. WATERFOWL IN NEBRASKA 



By HARRT C. OBERHOLSER, Assistant Biologist 



Part n. WILD-DUCK FOODS OF THE SANDHILL 



REGION OF NEBRASKA 



By W. L. McATEE, Assistant Biologist 



CONTENTS 



Page 



GENERAL ENTRODCCTION 1 



Part L WATERFOWL IN NEBRASKA : 



Introduction 3 



Effect of Federal Protective Laws 3 



Future of Waterfowl in the Sandhill Region 4 



Natural Enemies 6 



Hunting Grounds 8 



Waterfowl Hunting in the Autumn of 1915 ........ 8 



General Description of the Sandhill Region 10 



Annotated List of Birds 22 



Game Birds 22 



Nongame Birds 31 



Part n. WILD-DUCK FOODS OF THE SANDHILL REGION OF NEBRASKA: 



Introduction 37 



Improvementof the Wild-Duck Food Supply 38 



Effect of Alkaline Conditions on Duck-Food Plants 38 



List of Plants of the Sandhill Lakes 40 



Idst of Lakes Visited 40 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1920 



