A 



D 



P< 



Uncommon species 



O Gavia immer 



• Phalacrocorax pelagicus 



Phalaropus fulicarius 



4 Stercorarius pomarinus 



a Cyclorrhynchus psittacula 



■ Fratercula corniculata 



A Motacilla flava 



170° 



168° 



Figure 12. — Distribution of uncommon species in Bering Strait, 18 Oct. 1970. 



140 



