376 bulletin: museum of comparative zoology. 



Stercorariidae. 



Stercorarius pomarinus (Temminck). 

 pomarine jaeger. 



This species was only identified at Griffin Point, where Mr. Dixon 

 took two males and a female during the last week of May 1914. The 

 female was in the dark phase of plumage. 



Stercorarius longicaudus Vieillot. 

 long-tailed jaeger. 



The first jaegers arrived at Demarcation Point on May 24, a flock 

 of seven flying east. They seemed to be of this species but often it is 

 impossible to determine them in the field, their best diagnostic char- 

 acter being a matter of bill measurements. 



Neither the Long-tailed or Parasitic Jaegers were common at 

 Demarcation Point and no nests of either were found. 



Stercorarius parasiticus (Linne). 

 parasitic jaeger. 



Not common at Demarcation Point. All dark phase birds seen 

 were paired with birds in dark plumage. It seems strange that in so 

 many cases dark plumaged birds should be mated if this coloration 

 is merely a matter of chance or as some have stated a character of 

 immaturity. Mr. Johan Koren found a nest of this species on Kodiak 

 Island, Alaska, June 19, 1911, and both birds were in the dark color 

 phase (Birds of the Arctic coast of East Siberia. By John E. Thayer 

 and Outram Bangs. Proc. N. E. Zool. Club, 1914, 5, p. 12), 



Charadriidae. 



MORINELLA INTERPRES MORINELLA (Linne). 

 RUDDY TURNSTONE. 



We found this bird very rare on the Arctic coast of Alaska, The only 

 ones seen in 1913 were four specimens taken in Camden Bay, July 31. 



