U. S. DEPARTMENT OF AGRICULTURE 

 BUREAU OF BIOLOQICAL SURVEY— BULLETIN No. 21 



C. HART MERRIAM, Chief 



THE BOBWIITE 



m OTHER pus OF THE 

 IN THEIR ECONOMIC RELATIONS 



SYLVESTER, D. JTJDD 



Assistant, Biological Survey 



WASHINGTON 

 GOVERNMENT PRINTING OFFICE 



1905 



