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Bird - Lore 



the ruins. The offal of the bear was composed entirely of the bones and feath- 

 ers of Petrels. 



The only way to prevent a repetition of this is to have a warden constantly 

 on the ground from June until the birds are through nesting. Of course, 

 owing to the great abundance of the Petrels on St. Lazaria, the destruction 

 of approximately five hundred incubating birds and their eggs would not 

 seriously afifect the numbers of the species, but if the numbers of the visiting 

 bears were to be materially increased the effect would be much more serious. 



REMAINS OF TUFTED PUFFINS AND YOUNG GLAUCOUS-WINGED GULLS IN NEST OF 



NORTHERN BALD EAGLE. ST. L.\ZARIA BIRD-RESERVATION, ALASKA 



Photographed by Special Agent G. Willett 



As to the Crows that inhabit the island, I can find but little to say m their 

 favor. They are always on hand to steal the eggs and young of the luckless 

 Cormorants, and I have even seen them go into the caves and raid the Murre 

 colony. Practically none of the Cormorants' nests contained complete sets 

 of eggs or young, and the ground under the favorite roostmg-places of the 

 Crow was covered with shells of Cormorant eggs. It would seem that the exter- 

 mination of these pests each year at the beginning of the nesting-season, and 

 a continual campaign against others that might put in an appearance while 

 the birds were nesting, would be the only feasible way to put an end to their 

 thievery. 



