NORTH AMERICAN GULLS AND THEIR ALLIES. 
21 
(Wetmore), and at Campbell Island, British Columbia, May 24, 1911 
(Wetmore) . 
Fall migration. — Throughout the entire summer kittiwakes in adult 
plumage are present at Sitka, Alaska, in large numbers, but they 
do not nest (Willett). Several hundred were seen at Glacier Bay, 
Alaska, July 13, 1907 (Grinnell), including some immature birds 
which undoubtedly had been raised farther west or northwest and 
were already on their fall migration. The first were seen at Queen 
Charlotte Islands, British Columbia, in September, 1895 (Fannin), 
but it is not until November that the species reaches California. The 
average date of arrival at Point Pinos is November 14, earliest 
November 6, 1907 (Beck). 
The last one noted at Point Barrow, Alaska, was on August 31, 
1897 (Stone); Nome, Alaska, September 10, 1910 (Thayer); Plover 
Bay, Siberia, September 17, 1880 (Bean); Unalaska Island, Octo- 
ber 5-6, 1899 (Bishop); St. Paul Island, October 12, 1914 (Hanna); 
and on Koliutschin Island, Siberia, September 22. 1912 (Thayer and 
Bangs) . 
RED-LEGGED KITTIWAKE. Bissa brevirostris (Bruch). 
Range. Coasts and islands of Bering Sea. 
The red-legged kittiwake breeds abundantly on the Pribilof 
Islands (Coinde), the Near Islands (Turner), and also on the Com- 
Fig. 7.— Red-legged kittiwake (Rissa brevirostris). 
mander Islands (Stejneger). It was common on St. Paul Island, 
Pribilofs, April 30, 1911 (Hahn), and eggs have been taken on St. 
