SMITHSONIAN INSTITUTION 



UNITED STATES NATIONAL MUSEUM 



Bulletin 107 



LIFE HISTORIES OF NORTH AMERICAN 

 DIVING BIRDS 



ORDER PYGOPODES 



BY 



ARTHUR CLEVELAND BENT 



Of Taunton, Massachustttt 



IMRV ^>^<^* yom 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1919 



