Red-breasted Merganser (Mergus serrator) | Avelgood Apps

The adult Red-breasted Merganser is 51 to 62 cm (20 to 24 in) long with a 70 to 86 cm (28 to 34 in) wingspan. It has a spiky crest and long thin red bill with serrated edges. The male has a dark head with a green sheen, a white neck with a rusty breast, a black back, and white underparts. Adult females have a rusty head and a greyish body. The juvenile is like the female, but lacks the white collar and has a smaller white wing patch.

Habitat and Distribution

The Red-breasted Merganser ‘s breeding habitat is freshwater lakes and rivers across northern North America, Greenland, Europe, and Asia. It nests in sheltered locations on the ground near water. It is migratory and many northern breeders winter in coastal waters further south.


Red-breasted Mergansers dive and swim underwater. They mainly eat small fish, but also aquatic insects, crustaceans, and frogs.



Calls and Songs

The call of the female is a rasping prrak prrak, while the male gives a feeble hiccup-and-sneeze display call.

Credit: Wikipedia