Mergus serrator
Copied!
Mass
~1 kg
Habitat
Wetlands and marshes
Diet
Fish and aquatic animals
How to recognize it
The Red-breasted Merganser stands out by its long, narrow bill, built for catching slippery prey. In breeding plumage, the male is especially striking with a dark green sheen on the head and a strong contrast of white, black, and rusty tones; the female looks much quieter and greyer.
It is a fast flier and spends much of its time hunting. It dives from the surface and chases prey underwater, and during courtship the male gives a rough, crow-like call while the female answers with a harsher note.
It breeds on freshwater lakes and rivers, then moves to coastal waters for winter. Fish make up most of its food, but it also takes crustaceans, aquatic insects, and worms.
Quick Facts
Listen to the call
The Red-breasted Merganser stands out by its long, narrow bill, built for catching slippery prey. In breeding plumage, the male is especially striking with a dark green sheen on the head and a strong contrast of white, black, and rusty tones; the female looks much quieter and greyer.
It is a fast flier and spends much of its time hunting. It dives from the surface and chases prey underwater, and during courtship the male gives a rough, crow-like call while the female answers with a harsher note.
It breeds on freshwater lakes and rivers, then moves to coastal waters for winter. Fish make up most of its food, but it also takes crustaceans, aquatic insects, and worms.
