American Merganser -

: Studies on captive birds suggest they may require roughly 9–11 ounces of fish daily to maintain body weight.

The (historically Mergus merganser americanus ) is the North American subspecies of the Common Merganser . It is a large, streamlined diving duck known for its specialized "saw-bill" designed to catch fish. Physical Identification

: They can stay submerged for up to 2 minutes, though most dives last less than 30 seconds in water typically shallower than 4 meters. Habitat and Range Feeding behavior of the Common Merganser in captivity american merganser

: Have gray bodies, white chests, and distinctive rusty-cinnamon heads with shaggy crests.

: Feature gleaming white bodies with dark, iridescent-green heads and a bright reddish-orange bill. : Studies on captive birds suggest they may

Common Mergansers are primarily piscivorous, focusing on fish but occasionally consuming other aquatic life.

Mergansers are sexually dimorphic, meaning males and females have distinct appearances. Physical Identification : They can stay submerged for

: Invertebrates (mollusks, crustaceans, worms), frogs, small mammals, and plants.