SMITHSONIAN MISCELLANEOUS COLLECTIONS 

 VOLUME 131, NUMBER 9 



BREEDING AND OTHER HABITS OF CASQUED 

 HORNBILLS (BYCANISTES SUBCYLINDRICUS) 



(With 6 Plates) 



By 

 LAWRENCE KILHAM 



Bethesda, Md. 





(Publication 4259) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



NOVEMBER 8, 1956 



