Smew, scientifically known as Mergellus albellus, is a small, diving waterbird that resides in the northern regions of Europe, Asia, and North America. Considered a part of the duck family Anatidae, the smew is recognized for its distinct appearance and characteristics. The adult male smew flaunts an elegant plumage with a predominantly white body, accompanied by black markings on its wings, back, and head. Additionally, the male boasts a striking, crested head that is white with a black eye patch. On the other hand, the female and immature smews exhibit a more muted palette, dressed in gray and brown tones, which aids in their camouflage.
Smews predominantly inhabit freshwater habitats with ample vegetation, such as lakes, ponds, and slow-moving rivers. As adept divers, they feed on a diet primarily consisting of small fish and invertebrates, which they capture by diving underwater. Their streamlined bodies enable swift and agile movements beneath the surface.
While the smew is typically a migratory bird, its wintering grounds are typically situated in more temperate regions, particularly in coastal areas. During the breeding season, they engage in elaborate courtship displays, with males performing various water-based rituals to attract a mate.
Due to habitat loss, pollution, and hunting, the smew population faces some conservation concerns. Consequently, conservation efforts are being implemented to safeguard their population and their unique place within the world of waterfowls.
