BROOKS: BIRDS FROM EAST SIBERIA AND ARCTIC ALASKA. 397 
and then but two or three flying east. No doubt they all went along 
the off shore “leads” for they bred abundantly east of the Mackenzie 
River delta. 
The first males began going west on July 2. 
A male taken by Mr. Dixon on August 9, at Herschel Island has 
the eclipse plumage about one third developed on the head, neck, 
breast, and back. 
MERGUS SERRATOR Linné. 
RED-BREASTED MERGANSER. 
A rare bird on the Arctic coast of Alaska. At Humphrey Point 
Mr. Dixon took two males, on June 24 and July 1, 1914. 
At Demarcation Point an Eskimo brought me a male killed on 
June 10, ten miles east of the Point. A male was seen at the Point 
on June 18, a pair June 21, and a male on June 28. Four males and 
two females were observed in Demarcation Bay, July 12. 
Three juveniles in the down were taken by Mr. Dixon on August 3, 
1914, on the mainland opposite Herschel Island. 
PHALACROCORACIDAE. 
PHALACROCORAX PELAGICUS PELAGICUS Pallas. 
\ 
PELAGIC CORMORANT. 
Pelagic Cormorants were abundant at Copper Island, May 6, 1913, 
and quite common at the mouth of Providence Bay, in June. 
At St. Lawrence Island they were beginning to lay by June 2, 1913, 
and eggs in an advanced state of incubation were taken at this Island, 
on June 28. 
PHALACROCORAX URILE (Gmelin). 
RED-FACED CORMORANT. 
This species was positively identified only at Avatcha Bay, May 10, 
1913, and at Cape Shipunski where a male was taken May 25, 1913. 
Only a few were seen. | 
