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Five or fewer of the species listed below will be identified as eligible each year; those eligible species will be provided to each contestant with the information provided in §91.1. (a) Whistling-Ducks. (1) Fulvous Whistling-Duck ( Dendrocygna bicolor ) (2) Black-bellied Whistling-Duck ( Dendrocygna autumnalis ) (b) Swans. (1) Trumpeter Swan ( Cygnus buccinator ) (2) Tundra Swan ( Cygnus columbianus ) (c) Geese. (1) Greater White-fronted Goose ( Anser albifrons ) (2) Snow Goose (including “white” and “blue” morphs) ( Chen caerulescens ) (3) Ross's Goose ( Chen rossii ) (4) Emperor Goose ( Chen canagica ) (5) Canada Goose ( Branta canadensis ) (6) Cackling Goose ( Branta hutchinsii ) (d) Brant. (1) Brant ( Branta bernicla ) (e) Dabbling Ducks. (1) Wood Duck ( Aix sponsa ) (2) American Wigeon ( Anas americana ) (3) Gadwall ( Anas strepera ) (4) American Green-winged Teal ( Anas crecca carolinensis ) (5) Mallard ( Anas platyrhynchos ) (6) Mottled Duck ( Anas fulvigula ) (7) American Black Duck ( Anas rubripes ) (8) Northern Pintail ( Anas acuta ) (9) Blue-winged Teal ( Anas discors ) (10) Cinnamon Teal ( Anas cyanoptera ) (11) Northern Shoveler ( Anas clypeata ) (f) Diving Ducks. (1) Canvasback ( Aythya valisineria ) (2) Redhead ( Aythya americana ) (3) Ring-necked Duck ( Aythya collaris ) (4) Greater Scaup ( Aythya marila ) (5) Lesser Scaup ( Aythya affinis ) (g) Sea-Ducks. (1) Common Eider ( Somateria mollissima ) (2) King Eider ( Somateria spectabilis ) (3) Spectacled Eider ( Somateria fischeri ) (4) Steller's Eider ( Polysticta stelleri ) (5) Harlequin Duck ( Histrionicus histrionicus ) (6) Long-tailed Duck ( Clangula hyemalis ) (7) Black Scoter ( Melanitta nigra ) (8) Surf Scoter ( Melanitta perspicillata ) (9) White-winged Scoter ( Melanitta fusca ) (10) Bufflehead ( Bucephala albeola ) (11) Barrow's Goldeneye ( Bucephala islandica ) (12) Common Goldeneye ( Bucephala clangula ) (h) Mergansers. (1) Hooded Merganser ( Lophodytes cucullatus ) (2) Red-breasted Merganser ( Mergus serrator ) (3) Common Merganser ( Mergus merganser ) (i) Stiff Tails. (1) Ruddy Duck ( Oxyura jamaicensis ) [71 FR 39014, July 11, 2006]
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