Birds

Common Merganser (Eurasian Subspecies)

Common Merganser (Eurasian Subspecies)

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The Eurasian subspecies of the Common Merganser (Mergus merganser merganser/orientalis) is a large fish-eating duck found across Europe and Asia. Males are striking with their sleek white bodies, dark green heads, and long, serrated red bills, while females are grey with rusty-brown, shaggy crests.
Where to spot
Widespread across temperate and northern Eurasia. Found on large freshwater lakes, slow-moving rivers, and coastal estuaries, especially in forested regions for breeding and open water for wintering.
How to spot
Look for their distinctive long, slender bill and diving behavior. Males are unmistakable with their pristine white flanks. Females have a clear demarcation between the rusty head and grey body. Observe them diving for fish and surfacing quickly.
When to spot
Year-round in parts of its range. Best during winter on large open waters or during spring and summer on smaller, forested rivers and lakes during the breeding season.
Despite their large size, Common Mergansers are highly agile underwater, using their powerful webbed feet to pursue fish with impressive speed and precision.
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