StacksVerified U.S. regulatory reference

50 CFR §91.4

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
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.
  1. (a)Whistling-Ducks.
    1. (1)Fulvous Whistling-Duck (Dendrocygna bicolor).
    2. (2)Black-bellied Whistling-Duck (Dendrocygna autumnalis).
  2. (b)Geese.
    1. (1)Emperor Goose (Anser canagicus).
    2. (2)Snow Goose (including “white” and “blue” morphs) (Anser caerulescens).
    3. (3)Ross's Goose (Anser rossii).
    4. (4)Greater White-fronted Goose (Anser albifrons).
    5. (5)Brant (Branta bernicla).
    6. (6)Cackling Goose (Branta hutchinsii).
    7. (7)Canada Goose (Branta canadensis).
  3. (c)Swans.
    1. (1)Trumpeter Swan (Cygnus buccinator).
    2. (2)Tundra Swan (Cygnus columbianus).
  4. (d)Dabbling Ducks.
    1. (1)Wood Duck (Aix sponsa).
    2. (2)Blue-winged Teal (Spatula discors).
    3. (3)Cinnamon Teal (Spatula cyanoptera).
    4. (4)Northern Shoveler (Spatula clypeata).
    5. (5)Gadwall (Mareca strepera).
    6. (6)American Wigeon (Mareca americana).
    7. (7)Mallard (Anas platyrhynchos).
    8. (8)American Black Duck (Anas rubripes).
    9. (9)Mottled Duck (Anas fulvigula).
    10. (10)Northern Pintail (Anas acuta).
    11. (11)Green-winged Teal (Anas crecca).
  5. (e)Diving Ducks.
    1. (1)Canvasback (Aythya valisineria).
    2. (2)Redhead (Aythya americana).
    3. (3)Ring-necked Duck (Aythya collaris).
    4. (4)Greater Scaup (Aythya marila).
    5. (5)Lesser Scaup (Aythya affinis).
  6. (f)Sea-Ducks.
    1. (1)Steller's Eider (Polysticta stelleri).
    2. (2)Spectacled Eider (Somateria fischeri).
    3. (3)King Eider (Somateria spectabilis).
    4. (4)Common Eider (Somateria mollissima).
    5. (5)Harlequin Duck (Histrionicus histrionicus).
    6. (6)Surf Scoter (Melanitta perspicillata).
    7. (7)White-winged Scoter (Melanitta fusca).
    8. (8)Black Scoter (Melanitta americana).
    9. (9)Long-tailed Duck (Clangula hyemalis).
    10. (10)Bufflehead (Bucephala albeola).
    11. (11)Common Goldeneye (Bucephala clangula).
    12. (12)Barrow's Goldeneye (Bucephala islandica).
  7. (g)Mergansers.
    1. (1)Hooded Merganser (Lophodytes cucullatus).
    2. (2)Common Merganser (Mergus merganser).
    3. (3)Red-breasted Merganser (Mergus serrator).
  8. (h)Stiff Tails.
    1. (1)Ruddy Duck (Oxyura jamaicensis).
    2. (2)[Reserved]