FAUNA OF THE ALEUTIAN ISLANDS AND ALASKA PENINSULA 245 



In 1941, Beals and Longworth noted the first Savannah spar- 

 row at False Pass on May 1 ; they became abundant after this 

 date. In 1925, I noted the first sparrow at Urilia Bay, Unimak 

 Island, on May 7. They had become common at False Pass by 

 May 13, 1925. 



Thus, the migration period can be limited to the first part of 

 May. 



After May 13, 1925, Savannah sparrows became common in all 

 the lowlands, including the grassy islands of Izembek Bay and 

 the mountain valley to Aghileen Pinnacles. They were common 

 on Amak Island, where young birds were on the wing by July 11, 

 and, in late summer, they were noted on Amagat Island and at 

 Ikatan. 



In 1936, we found them to be common on Unimak Island, 

 Amak, Unalaska, Baby Islands, and Tangik Island, near Akun. 

 In 1937, we saw a considerable number of them on Unalaska, and, 

 on August 29, they were common on Sanak. On May 16, 1936, 

 they were present on Nagai and Popof, in the Shumagins, where 

 they were again observed on August 26. We took a specimen on 

 Dolgoi, May 24, 1937. 



Gianini (1917) noted these birds at Stepovak Bay. In 1911, 

 Wetmore found them to be common at Morzhovoi Bay, at King 

 Cove, at Belkofski, and at the east base of Frosty Peak. 



In 1940, Gabrielson reported these birds to be common at 

 Morzhovoi Bay, Akutan, Carlisle, and Amukta, and in following 

 seasons he found them to be plentiful in numerous places through- 

 out this area, including Uliaga, Kagamil, Yanaska, and Adak, 

 but he saw none on Amchitka. 



McGregor (1906) found this species on Unalaska, Amaknak, 

 Unalga, Tigalda, Unimak, Akutan, Akun, Egg, and Aektok Is- 

 lands. He says, "The sandwich sparrow was abundant on every 

 one of the Krenitzin Islands, and on most of them they fairly 

 swarmed, outnumbering all other land birds combined." 



In 1936, we saw them on Ananiuliak (near Umnak Island), 

 Kagamil, Uliaga, Chuginadak, and Carlisle. In 1937, we noted 

 them on Ananiuliak and at Nikolski Village on Umnak. On Au- 

 gust 22, they were common on Samalga Island, which is low and 

 grassy, and we noted one on Herbert Island. 



Cahn writes of this sparrow on Unalaska, "Apparently ar- 

 rives in numbers overnight; by late May (earliest date, May 20, 

 1943) or early June they are suddenly everywhere among the 

 tundra grasses, and in full song at once. During June, July and 

 August they are extremely abundant and nest in the open tundra." 



