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
Common Mergansers are primarily piscivorous, focusing on fish but occasionally consuming other aquatic life. american merganser
: Have gray bodies, white chests, and distinctive rusty-cinnamon heads with shaggy crests.
Mergansers are sexually dimorphic, meaning males and females have distinct appearances. The (historically Mergus merganser americanus ) is the
: Studies on captive birds suggest they may require roughly 9–11 ounces of fish daily to maintain body weight.
: Includes trout, salmon, suckers, sculpin, shad, sunfish, minnows, and eels. Habitat and Range Feeding behavior of the Common
: Feature gleaming white bodies with dark, iridescent-green heads and a bright reddish-orange bill.