---
kind: "section"
citation: "50 C.F.R. § 91.4"
title: "50"
number: "91.4"
heading: "Eligible species."
url: "https://uscodex.org/cfr/50/91.4"
---

# §91.4. Eligible species.


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](/cfr/50/91.1.md).

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

## Notes

### Amendments

[83 FR 12279, Mar. 21, 2018]

### Authority

Authority: 5 U.S.C. 301; 16 U.S.C. 718j; 31 U.S.C. 9701.

### Source

Source: 53 FR 16344, May 6, 1988, unless otherwise noted.

### Amendments

[83 FR 12279, Mar. 21, 2018]