8 BIRDS AND MAMMALS OF EAST SIBERIA [^vbf.V^' 



Fratercula corniculata (Naumann). 



There is a large breeding colony of horned puffins on Koliutschin 

 Island, and as late in the season as September 22 they were observed 

 still about their breeding grounds there, in immense numbers. 

 West of Koliutschin Island the species was not seen. 



The paroquet auklet {Phaleris psittacula (Pallas)) was found 

 breeding as far north as Sea Lion Rock, Amak Island, but never was 

 seen beyond Bering Strait. 



Aethia cristatella (Pallas). 



Off Cape Iksurin, September 26-28, a small flock of birds of this 

 species was seen. Beyond this point, to the w^est, it never was 

 observed. 



Aethia pusilla (Pallas). 



At Cape Iksurin, September 26, one bird was observed, the 

 farthest west the species was seen. 



Brachyramphus brevirostris (Vigors.). 



Kittlitz's murrelet was seen now and then, singly or in pairs, 

 among the ice, all along the Arctic coast of Siberia, west to Cape 

 Yakan, where the last one was observed September 8, 1912. 



Cepphus mandti (Mandt). 



This species winters in Bering Strait. A breeding place at Cape 

 Kibera Island was visited, August 30-31, 1912, at which time all of 

 the young birds were still in the nests. On September 10 of the 

 previous year, however, there were no guillemots to be seen at 



