FAUNA OF THE ALEUTIAN ISLANDS AND ALASKA PENINSULA 119 



(1934), using the name Falco rusticolus candicans, records a 

 pair seen on Akutan and several on Unalaska by Cyril G. Harrold. 

 Beals and Longworth report — 



March 2, False Pass: 1 falcon, very light, almost grey, on a cliff approxi- 

 mately 1500 feet elevation. March 14, False Pass: 2 at elevation of 1800 

 feet, color white. March 24, False Pass: 1 with color predominantly white, 

 flying over alders back of cannery. May 13, False Pass: 2 almost pure white 

 falcons at 1500 feet. 



These are all sight records, and one cannot be sure which 

 form of gyrfalcon was represented. But there are several speci- 

 mens in the National Museum that are referable to uralensis: 

 Three were taken at Nushagak, September 1, 1881, October 20, 

 1881, and December 5, 1882; and a juvenile specimen was ob- 

 tained from Herendeen Bay, taken July 15, 1890, by C. H. 

 Townsend, and marked by Friedmann as "Prob. uralensis." Fried- 

 mann has also recorded 2 from Kodiak Island, 1 taken by Fisher, 

 September 18, 1882, and the other (no longer extant) by Panshin 

 in 1871. 



On September 21, 1942, Beal obtained a specimen at Cold Bay, 

 on Alaska Peninsula. 



Stejneger (1885) listed Falco rusticolus and Falco islandus for 

 the Commander Islands. The former, he says, is not uncommon in 

 winter — feeding chiefly on "the numerous field mice which now 

 infest that island," — and possibly nests there. He states that 

 F. islandus breeds there in limited numbers. 



Hartert (1920) records 4 white and 4 dark immature birds 

 and 1 white and 3 dark adults from the Commander Islands, all 

 taken in winter ; he lists them all under Falco rusticolus candicans. 



Falco rusticolus obsoletus 



In the National Museum there is a specimen taken by McKay 

 at Ugashik in 1881 ; it was identified by Friedmann as obsoletus. 

 To what extent this bird occurs in the Aleutian district is un- 

 known, nor do we know how many of this form were represented 

 in the sight records listed under uralensis. 



Bond (1949) has thrown some doubt on the classification of 

 western American gyrfalcons, but I have not had an opportunity 

 to evaluate the situation. 



Falco peregrinus: Peregrine Falcon 

 Falco peregrinus anatum 



We did not obtain specimens of anatum in the Aleutian district, 

 though Friedmann (1935) records a specimen from Kodiak Is- 



