Muuuh Wildlife Photography

Common merganser - Mergus merganser

A large duck of rivers and lakes in forested areas. This species eats a wide range of aquatic prey like fishes, molluscs, crustaceans, insect larvae and amphibians. They build their nests in tree cavities hence its preferences for rivers and lakes in forested areas. This species is a partial migrant, leaving areas where rivers and lakes freeze and move to nearby areas.

Common Names

  • Common merganser (en)
  • Serreta grande (es)
  • Harle bièvre (fr)
  • Gänsesäger (de)


  • Anseriformes
  • Anatidae
  • Mergus merganser

Where & When to Spot

I observe this species frequently in Rapids Park Lachine.

How to Identify

This bird is very similar in appearance to the Red-breasted Merganser. A distinguished characteristic is the separation of head color and breast and neck color. The separation is a well defined line in both male and female.


Common Merganser (Mergus merganser)

Common Merganser (Mergus merganser)

Rapids Park Lachine - 2016-03-19

NIKON D7100; 150-600mm f/5.0-6.3; Focal Length 600mm; Exposure 1/2500; Aperture f6.3; Iso 200;

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