Birds
Mergus merganser

Common Merganser

Common Merganser

30
1 day ago
Spotted
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.
Mergus merganser
Common Merganser
Common merganser
Mergus merganser
Mergus merganser
Mergus merganser
Mergus merganser
Credits: Ouwesok
Common Merganser
Credits: mgrimm82
Common merganser
Credits: cricketsblog
Mergus merganser
Credits: Ouwesok
Mergus merganser
Credits: Ouwesok
Mergus merganser
Credits: Ouwesok
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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Simeon
Simeon
4 months ago
Common Merganser
Rhenen, Utrecht
Spotted Common Merganser
Spotted Common Merganser
+50
Lifer
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Patricia
Patricia
2 months ago
Common Merganser
Grootschermer, Noord-Holland
Spotted Common Merganser
Spotted Common Merganser
+25
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Patricia
Patricia
5 months ago
Common Merganser
Heerhugowaard, Noord-Holland
Spotted Common Merganser
Spotted Common Merganser
+50
Lifer
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Sarah
Sarah
5 months ago
Common Merganser
Spotted Common Merganser
Spotted Common Merganser
+25
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Bert
Bert
5 months ago
Common Merganser
Wolmirstedt, Sachsen-Anhalt
Spotted Common Merganser
Spotted Common Merganser
+13
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1
Bert
Bert
5 months ago
Common Merganser
Kamperveen, Overijssel
Spotted Common Merganser
Spotted Common Merganser
+25
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G
Gertjan Prins
6 months ago
Common Merganser
Kampen, Overijssel
Spotted Common Merganser
Spotted Common Merganser
+50
Lifer
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Joas
Joas
6 months ago
Common Merganser
Dronten, Flevoland
Spotted Common Merganser
Spotted Common Merganser
+50
Lifer
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