Female common mergansers have a tufted red-brown head that is clearly defined from the lower neck by a clear whitish chin. The back and sides are silver-gray and the breast and belly are white. The bill is red with a blackish culmen and nail. The legs and feet are deep red. In flight, common mergansers appear more elongated than other ducks, flying in trailing lines close to the water's surface. ~ Ducks Unlimited

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