brooks: birds from east Siberia and arctic Alaska. 375 



Though there is no data to determine the range of this species it 

 must be a very boreal form, and perhaps comparatively small in 

 numbers. The Alaskan specimens may have wandered from EUes- 

 mere Land, but it seems reasonable to believe that the bird may 

 inhabit Prince Patrick, Melville or Bathurst Islands, nearly all this 

 territory beina; north of 75°. 



Larus hyperboreus Gunnerus. 

 glaucous gull. 



Glaucous Gulls were moderately common on the Arctic coast of 

 Alaska, and young in the down were found at Camden Bay and on the 

 mainland near Herschel Island. 



None were seen at Demai-cation Point in the spring of 1914 until 

 May 14. After that two or three might be seen flying about over the 

 tundra about every day, but no nest was found. 



Pagophila alba (Gunnerus). 

 ivory gull. 



We did not see this bird alive and our collection contains only one 

 specimen. It is an adult female found by an Eskimo in a trap he 

 had set for white foxes about five miles out on the ice. It was taken 

 November 25, 1913, five days after the sun had gone, but seemed fat 

 and in good condition. 



Murdoch rarely saw this species at Point Barrow. 



RiSSA TRIDACTYLA POLLICARIS Ridgway. 



pacific kittiwake. 



We found the Pacific Kittiwake common on the Commander Islands 

 and east coast of Kamchatka during the first three weeks of May. 

 It was very abundant about Bering Straits and extreme eastern 

 Siberia. 



We took specimens at Copper Island, Cape Shipunski, Indian Point, 

 and East Cape. 



