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 (Linné). 
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. 
MorRINELLA INTERPRES MORINELLA (Linné). 
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. 
