Wyoming's waterfowl belong to the order Anseriformes whose members include the swans, geese and ducks. (I threw in a few grebes and a coot because they fit nicely with this section.) These birds are strong swimmers and their feet are completely webbed (or merely lobbed as with the grebes and coots). Their diet is varied. Those that feed on fish have bills with serrated margins (Common Merganser) and those that prefer vegetation may be grazers (Canada Goose), dippers (Mallard) or divers (Common Goldeneye).
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