
Common Merganser
Common Merganser
30
1 day ago




+4
Spotted by
The Common Merganser is a large, streamlined diving duck, the largest of the mergansers, identifiable by its slender, serrated bill adapted for catching fish. Males are striking with a dark green head, gleaming white body, and black back.
Where to spot
Breeds near freshwater lakes and rivers in forested regions across temperate North America, Europe, and Asia. Winters on large ice-free freshwater bodies and coastal bays throughout its breeding range and further south.
How to spot
Look for them on large freshwater lakes, rivers, and estuaries. Males are unmistakable with their sleek, dark green head and clean white body. Females have a shaggy, reddish-brown crest that contrasts sharply with their white throat, and a grey body. Both have a prominent red, slender bill.
When to spot
Can be observed year-round in suitable habitats, but large flocks are more common during winter.
Where to spot
Breeds near freshwater lakes and rivers in forested regions across temperate North America, Europe, and Asia. Winters on large ice-free freshwater bodies and coastal bays throughout its breeding range and further south.
How to spot
Look for them on large freshwater lakes, rivers, and estuaries. Males are unmistakable with their sleek, dark green head and clean white body. Females have a shaggy, reddish-brown crest that contrasts sharply with their white throat, and a grey body. Both have a prominent red, slender bill.
When to spot
Can be observed year-round in suitable habitats, but large flocks are more common during winter.
Common Mergansers are highly social during winter, often forming large flocks that 'corral' fish, herding them into shallower water for easier capture.
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Spotted
- Recently spotted
- 1852 (Seen in the last 3 months)
- Last spotted
- 1 day ago
Monthly observations
14 observations
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