Species Number Percent Surf Scoter 18 24.7 (Melanitta perspicillata) Long-tailed Duck 14 19.2 (Clangula hyemalis
) White-winged Scoter 13 17.8 (Melanitta fusca) Greater Scaup 13 17.8 (Aythya marila) Black Scoter 8 10.1 (Melanitta nigra) Lesser Scaup 2 2.7 (Aythya affinis) Hooded Merganser 2 2.7 (Lophodytes cucullatus) Bufflehead 1 1.4 (Bucephala albeola) Harlequin Duck 1 1.4 (Histrionicus histrionicus) Mallard 1 1.4 (Anas platyrhynchos) Total 73 100.0 TABLE 2.
Concerns about eider mortality have not been unfounded: collisions with Northstar in fall 2001-04 killed at least 17 Common Eiders, four King Eiders, and two unidentified eiders, plus 14 Long-tailed Ducks (Clangula hyemalis
) and two unidentified waterfowl, although none of them were killed during periods when we actually were sampling.
With any luck, the bellowing is soon replaced by the whistling wings of surf scoters (Melanitta perspicilatta), the relentless whe-oo-hoo of black scoters (Melanitta nigra), and boisterous ow-owooolee of long-tailed ducks (Clangula hyemalis
) buzzing the decoys in the early morning light.
The shift of these predators to duck eggs and young as alternative prey has, in turn, been hypothesised to result in decreased breeding success of long-tailed duck Clangula hyemalis
on the Taimyr Peninsula (Hario et al.
The American Ornithologists' Union has changed the official American name of the duck Clangula hyemalis
from "oldsquaw" to the British designation "long-tailed duck" (42d supplement to the American Ornithologists' Union, Check-List of North American Birds, Auk 117 (2000): 847-58).
fuligula 18 Common eider Somateria mollissima 15 Long-tailed duck Clangula hyemalis
1 Goldeneye Bucephala clangula 3 Red-breasted merganser Mergus serrator 4 Total 1,477 3,323 Common name Total No.
(6) Teratomas have been documented in a variety of mammalian, reptilian, and avian species, including an African grey parrot (Psittacus erithacus erithacus), several species of ducks (Anas species), chickens (Gallus domesticus), domestic geese (Anser anser domesticus), ruffed grouse (Bonasa umbellus), old squaw (Clangula hyemalis
), and Canada geese (Branta canadensis).
rossii (Cassin), Ross's goose I R Clangula hyemalis
(Linnacus), N O long-tailed duck Cygnus buccinator Richardson, I R trumpeter swan C.
Occurring in tandem have been declines in various populations of Alaska sea ducks including, for example: (1) a 54 percent decline between 1976 and 1994 of nesting common eider (Somateria mollissima) in northern Alaska and the western Canadian arctic; (2) a 2.2 percent annual decline between 1977 and 1998 in black scoter (Melanitta nigra) in western Alaska; (3) a 5.5 percent annual decline of oldsquaw (Clangula hyemalis
) in surveyed areas in western Alaska since 1977; (4) over a 90 percent decline in spectacled eider (Somateria fischeri) in the YK-Delta from the 1970s to 1992; and (5) the virtual disappearance of Steller's eiders (Polysticta stelleri) from the YK-Delta since initial surveys in the 1960s (USFWS 1999).
brant, Branta branta; scaup, Aythya sp.; goldeneye, Bucephala sp., scoters, Melanitta sp., old squaw, Clangula hyemalis
; eiders, Somateria sp.; and Harlequin ducks, Histrionicus histrionicus; other species can feed on small fish they find on shallow reefs, e.g.
[=Rufibrenta] ruficollis), long-tailed duck (Clangula hyemalis
) and snowy owl (Nyctea scandiaca) do not breed outside the tundra.
The following species were numerous on migration: Snow Goose (Chen caerulescens), Northern Pintail (Anas acuta), Oldsquaw (Clangula hyemalis
), Red-breasted Merganser (Mergus serrator), and Sanderling (Calidris alba).