Common Mergansers are primarily piscivorous, focusing on fish but occasionally consuming other aquatic life.
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 american merganser
Mergansers are sexually dimorphic, meaning males and females have distinct appearances. Common Mergansers are primarily piscivorous
: Have gray bodies, white chests, and distinctive rusty-cinnamon heads with shaggy crests. american merganser
: Invertebrates (mollusks, crustaceans, worms), frogs, small mammals, and plants.
: Feature gleaming white bodies with dark, iridescent-green heads and a bright reddish-orange bill.
: Studies on captive birds suggest they may require roughly 9–11 ounces of fish daily to maintain body weight.