Townsend. — Pribilof Seal Herd 275 



The principal thing in the management of the rookeries 

 will be, however, the limiting of the number of adult males 

 allowed to enter the rookeries. 



Notwithstanding the fact that during recent years a 

 very large proportion of the surplus males has been killed 

 for profit, our annual photographic records show that there 

 has always been, with the exception of one or two seasons, 

 a sufficient surplus of idle males adjacent to each rookery. 

 Such animals force their way in as soon as they acquire the 

 weight and the courage necessary for them to do so. All 

 claims that we have killed too many of the surplus males can 

 easily be disproved by the photographic records of the 

 Bureau of Fisheries. 



