Issued May 24, 1911. 



U. S. DEPARTMENT OF AGRICULTURE 



BIOLOGICAL SURVEYS-BULLETIN No. 37 



HENRY W. UENSHAW, Chief 



FOOD OF THE WOODPECKERS OF THE 

 .UNITED STATES 



BY 



F. E. L. BEAI^ 



Assistant, Biolur/ical Surrey 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1911 



