62 University of California Publications in Zoology. [Vol. 7 



at but two localities : At Duke Island, June 7, an adult, with the 

 red tail, was seen circling overhead, and on the Chickamin River, 

 June 18, Hasselborg shot one of several seen in the vicinity of 

 a colony of marmots. 



The bird secured (no. 9769) is a male in the light phase of the 

 immature plumage, and was apparently not breeding, though 

 it is a bird of the previous year at least. In its small size it 

 bears out one of the characters upon which the subspecies 

 alascensis was based; but in coloration and markings I cannot 

 distinguish it from comparable California specimens of calurus. 



Archibuteo' lagopus sancti-johannis (Gmelin). 



American Rough-legged Hawk. 



A large, dark-colored hawk, seen hunting over the meadows 

 along the Taku River, on September 12, is, I believe, to be 

 referred to this species. It was seen several times during the 

 day, but was wild and unapproachable, and was driven from 

 place to place by two marsh hawks who strongly resented its 

 appearance in the neighborhood. 



Haliaeetus leucocephalus alascanus Townsend. 



Alaska Bald Eagle. 



This, the only bird of prey that is really abundant in the 

 region, is so universally distributed that a list of the stations 

 where it was observed woul(^ include every point visited during 

 the season. The numbers seen varied greatly from place to place, 

 the varying food supply being probably the cause of the difEer- 

 ences. About San Alberto Bay, Prince of Wales Island, 

 especially large numbers were seen, sometimes forty or fifty 

 being in sight at once, and here they were feeding on the spawn- 

 ing herring. At this point Hasselborg killed a bear, and passing 

 by the place the following day, found about thirty eagles feasting 

 on the carcass. It seems hardly probable that all the birds seen 

 were breeding, for few nests were observed anywhere, compared 

 with the large numbers of the birds encountered. At Kupreanof 

 and Kuiu islands, in April, several occupied nests were seen, 

 but we did not disturb them. By the middle of July young 



