Mergellus albellus - Anatidae - Anseriformes. | Gajoldoba
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The Smew (Mergellus albellus) is a small species of duck that is native to northern parts of Europe and Asia. It is a diving duck that is known for its striking black and white plumage and its distinctive head shape, which gives it a unique appearance among waterfowl.


The Smew is a small duck, with males weighing around 700 grams and females weighing around 500 grams. It is sexually dimorphic, with males having a striking black and white plumage that includes a white crest on their head and a black "mask" around their eyes, while females are grayish-brown with a white patch on their cheeks. The species is a diving duck, and is adapted for swimming and diving with webbed feet and a streamlined body.


The Smew is a migratory bird that breeds in northern parts of Europe and Asia and spends the winter in southern parts of Europe and Asia. During the breeding season, males engage in courtship displays, including head bobbing and wing flapping, to attract females. The species is monogamous, and pairs form during the breeding season. Females lay a clutch of 6-9 eggs in a nest that is often located in a tree cavity or other sheltered location.

Distribution and Habitat

The Smew is found in northern parts of Europe and Asia, including Scandinavia, Russia, and China. It is a bird of freshwater habitats, and is found in lakes, ponds, and slow-moving rivers, often in wooded areas.


Conservation efforts are focused on protecting the remaining populations of Smew and their habitat. This includes measures such as habitat restoration, protected areas, and regulation of hunting and trade. Research is ongoing to better understand the species' ecology and behavior, which can inform conservation strategies.