Bulletin No. 7 



U. S. DEPARTMENT OF AGRICULTURE 



DIVISION OF ORNITHOLOGY AND MAMMALOGY 



PRELIMINARY REPORT 



FOOD OF WOODPECKERS 



F. E. L. BEAL 



Assistant Ornithologist 



THE TONGUES OF WOODPECKERS 



F. A. LUCAS 



Curator, Department Comparative Anatomy 

 U. S. National Museum 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



