20 BULLETIN 292, TJ. S. DEPARTMENT OF AGRICULTURE. 



is not common east of Cape Lisburne, and its presence at Point Bar- 

 row may be more or less casual. It breeds south to Seldovia, Alaska 

 (Chapman) , and the Shumagin Islands, Alaska (Dall), while a speci- 

 men taken at Yakutat, Alaska, June 21, 1899, and now in the U. S. 

 National Museum, indicates that the subspecies may breed in that 

 locality. 



It is abundant on the eastern Aleutians, but much less common 

 west of Unimak Pass, though it was not rare on Kiska Island, June 

 17-21, 1911 (Wetmore), and occurs on the Near Islands (Turner). 

 On the Asiatic side it is abundant on the Commander Islands (Stej- 

 neger) and breeds south to the Kurils (Saunders). It breeds on 

 the Arctic coast of Siberia west to Koliutschin Islands, and ranges 

 west to Chaun Bay (Thayer and Bangs). 



Winter range. — The Pacific kittiwake is commonly believed to 

 winter in the Aleutians, but there seems to be no certain record of 

 its occurrence there at that season. It does winter at Sitka, Alaska 

 (Willett), and on the coast of southern British Columbia — Discovery 

 Island, January, 1896 (Kermode) — and thence south along the coast 

 regularly to central California, and occasionally to southern Cali- 

 fornia and northern Lower California: Paso Robles, March 31, 1913, 

 (Thompson); Playa del Ray, January 9, 1906, and December 30, 

 1911 (Willett); Alamitos Bay, April 14, 1907 (Linton); San Diego, 

 February 26, 1895 (Anthony) ; San Geronimo Island, Lower Califor- 

 nia, March 15, 1897 (Kaeding). Kittiwakes are probably more com- 

 mon during winter along the coasts of northern California, Oregon, 

 and Washington than is indicated by the scant half dozen records 

 for this long coast. 



On the Asiatic side there seem to be no winter records farther south 

 than the southern limit of the breeding range on the Kurile Islands, 

 indicating that these most southerly breeding kittiwakes are non- 

 migratory. The more northern breeders retire so far to the south- 

 ward that they do not winter on the Commander Islands (Stejncger). 



Spring migration. — The first kittiwakes arrived at St. Paul Island, 

 Pribilofs, April 20, 1909 (Island log), and April 24, 1911 (Hanna); 

 at St. Michael, Alaska, May 6, 1851 (Adams); and Point Barrow, 

 Alaska, June 2, 1898 (Stone). The first were noted in 18S3 on Bor- 

 ing Island about April 1 (Stejncger). 



Eggs were taken at Walrus Island in Bristol Bay, Alaska, June 

 8, 1889, and at Cape Lisburne, June 10, 1885 (specimens in U. S. 

 National Museum). The nesting season is much prolonged, for eggs 

 were obtained at Seldovia as late as July 24, 1903 (Chapman), and 

 on St. Paul Island to August 2, 1890 (specimens in U. S. National 

 Museum). 



Kittiwakes were last seen at Point Pinos, Cal., April 25, 1907 (Beck) ; 

 and they were still present at Port Townsend, Wash., May 19, 1911 



