: Studies on captive birds suggest they may require roughly 9–11 ounces of fish daily to maintain body weight.
: Have gray bodies, white chests, and distinctive rusty-cinnamon heads with shaggy crests. american merganser
: Invertebrates (mollusks, crustaceans, worms), frogs, small mammals, and plants. : Studies on captive birds suggest they may
: Feature gleaming white bodies with dark, iridescent-green heads and a bright reddish-orange bill. american merganser