description Red-breasted Merganser Overview
The Red-breasted Merganser is a species of diving duck found across freshwater lakes and marine coastlines in the Northern Hemisphere. Breeding males are easily identified by their dark, spiky double crests, green heads, and reddish-brown breasts. Like other mergansers, they possess serrated edges on their slender bills, an adaptation suited for catching and holding slippery fish. They are highly migratory, wintering further south along protected coastal waters and large inland lakes.
help Red-breasted Merganser FAQ
What is the scientific name of the Red-breasted Merganser?
The Red-breasted Merganser is scientifically named Mergus serrator. It occurs across freshwater lakes and marine coastlines in the Northern Hemisphere.
How can you identify a breeding male Red-breasted Merganser?
The breeding male has a green head, reddish-brown breast, and a dark, spiky double crest. Its narrow serrated bill is another important clue because mergansers use it to grip slippery prey.
What does the Red-breasted Merganser eat?
It is a diving duck that commonly hunts fish and other aquatic animals underwater. The serrated edges of its bill help it hold prey after a dive.
Does the Red-breasted Merganser live only on the coast?
No, it uses both marine coastlines and freshwater lakes. Its broad Northern Hemisphere distribution reflects its ability to forage in different aquatic environments.
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