The Smew Bird is a species of duck, and is the only living member of the genus Mergellus. Mergellus is a diminutive of Mergus and albellus is from Latin albus “white”.
Smew Bird Facts:
Size: 45 cm
Voice: Rather quiet. Male has a high bubbling note; female croaks
Range: Rare winter visitor
Habitat: Fish-rich lakes; slow rivers
Male has pristine white body with black marking on head, back and breast. Distinct white crest bordered black; pale grey flanks. Non-breeding male has grey tint to body and no crest. Female has dark grey body, chestnut cap and white cheeks. Both sexes display dark upperwings with white wing-covert patches in flight.