ECOLOGY AND BIOLOGY OF THE PACIFIC WALRUS 15 



Fig. 9. Walruses sighted in June (symbols as in Fig. 4). 



Extralimital records include sightings at False Pass, Wosnesenskii Island, and in 

 Cook Inlet in 1979 (C. A. Smith, R. Tremaine, K. W. Pitcher, personal 

 communication) . 



July (Fig. 10) 



The last remnant of the Bering Sea pack persists in the southwestern Gulf of 

 Anadyr usually until the end of this month. To the north in the Chukchi Sea, the 

 edge of the main pack usually recedes to about 70°N by that time. Meanwhile, 

 ice in the eastern Beaufort Sea also has begun to open up. Walruses are abundant 

 off the northern coast of Chukotka from Bering Strait at least as far west as Long 

 Strait, while in the eastern Chukchi Sea, large groups are situated between Icy 

 Cape and Barrow. South of Bering Strait, the animals found along both the 

 Alaskan and Siberian coasts are mainly those that will remain there during the 

 summer. These use the Arakamchechen, Rudder, and Meechken hauling 

 grounds on the Siberian coast and Round Island in northern Bristol Bay. 

 Practically all of these animals are males. 



The most northerly records at this time are at Predatel'skii Bay, Wrangell 

 Island (Tomilin and Kibal'chich 1975), at 72°N, 165°W (H. W. Braham, 

 personal communication) and at Holman Island, Northwest Territories 

 (Harington 1966). To the south, several animals have been sighted along the 

 Koryak coast at Natalia Bay (Nikulin 1941) and at Bogoslov Island, Cape 

 Zosimy, and Lavrov Bay (Kosygin and Sobolevskii 1971); others have been seen 



