SMITHSONIAN INSTITUTION ' 



UNITED STATES NATIONAL MUSEUM ^^(J^^ 

 / V? ^ Bulletin 121 



LIFE HISTORIES OF NORTH AMERICAN 



PETRELS AND PELICANS 



AND THEIR ALLIES 



ORDER TU^INARES AND ORDER STEGANOPODES 



BY 

 ARTHUR CLEVELAND BENT 



0/ Taantan, Mastachusetts 



WASfilNGTON 



GOVERNMENT PRINTING OFFICE 



1922 



