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



Harelda hyemalis (Linnaeus). Old-squaw. 



An exceedingly common species in the spring, during April 

 and May. Several flocks were seen at Kake Village on the 

 morning of April 11, and in the waters about Kupreanof and 

 Kuiu islands old-squaws were in sight almost constantly. Many 

 were also seen about the north end of Prince of Wales Island, 

 at Port Protection and Calder Bay. At the latter place they 

 were particularly numerous, flocks of hundreds streaming past 

 the launch. At Coronation Island they were fairly abundant, 

 and many were seen about Heceta Island on May 23. None 

 were observed anywhere after that date. The loud, peculiar 

 call-note of the old-squaw could be heard from morning to night 

 while the birds were around. 



Histrionicus histrionicus (Linnaeus). Harlequin Duck. 



Quite generally distributed through the region we traversed, 

 though nowhere as numerous as were some of the other species. 

 About Kupreanof and Kuiu islands it was fairly common, in 

 flocks of eight or ten, and at Port Protection, Prince of Wales 

 Island, it was seen daily from May 6 to 10, though not in great 

 numbers. At Coronation Island many were seen feeding among 

 the rocks at the water's edge, and were very tame and easily 

 approached. The species was probably more abundant at 

 Marten Arm, Boca de Quadra, than at any other point, and here 

 also the birds were noticeably tame. At this time, June 9 to 14, 

 they were all in pairs, but usually two or three pairs seemed to 

 stay together. Here they were generally observed feeding in the 

 swift-flowing streams. A great many were seen at the mouth 

 of Portage Cove, Revillagigedo Island, June 28 to July 4. 



Oidemia americana Swainson. American Scoter. 



Apparently the least abundant species of scoter in the waters 

 of southeastern Alaska. None were positively identified in the 

 large flocks of sea ducks seen about Kuiu Island, and the species 

 was first met with certainly at Calder Bay, Prince of Wales 

 Island, May 30. They were fairly common about the north end 

 of Dall Island during the first week in June, but after leaving 



