The silhouette in flight is very distinctive: a short, stocky, medium-sized (46 cm, 650–1200 g) diving duck with a large, dark green or brown head and a massive triangular bill (1), a short neck (2), white underparts (3), dark underwings (4). On the upper side of the wing, a white speculum extending forward (5). Male in breeding plumage has a white patch on the cheek (6).
In flight, the wings produce a characteristic, vibrating whistle (recording shows female voice and flight sound).
Hunted all season, especially abundant in the second half of October and November. Found at sea, rivers, large lakes, and ponds, less often in smaller ponds.
Updated: 13.01.2026