KEYS TO IDENTIFICATION
 | SIZE & SHAPE
Gadwall are about the same size as mallards. Gadwall have a fairly large, square head with a steep forehead. The bill is noticeably thinner than a mallards. In flight, the neck is noticeably slightly thinner and the wings more slender than a mallards. |
Color Pattern
Male Gadwall are gray-brown with a black patch at the tail. Females are patterned with brown and buff. Females have a thin orange edge to their dark bills. In flight, both sexes have a white wing patch that is sometimes visible while swimming or resting
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