U. S DEPARTMENT OF AGRICULTURE 

 BIOLOGICAL SURVEY— BULLETIN No. 27 



C. HART MERRIAM, Chief 



THE 



NORTH AMERICAN EAGLES 



AND 



THEIR ECONOMIC (RELATIO 



•HElARRY C. OBERHOLSER 



ASSISTANT ORNITHOLOGIST, BIOLOGICAL SURVEY 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1906 



