Greater scaup / Bergente (Aythya marila)

Wikipedia: Greater scaup Source: OTHER 1200px-2017-03-24_Aythya_marila%2C_male%2C_Killingworth_Lake%2C_Northumberland_15.jpg
Classification: Genus Aythya; Tribe Diving ducks (Aythyini); Subfamily Dabbling ducks plus extinct (Anatinae); Family Waterfowl (Anatidae)
This bird appears across the great seas in the following continents: Europe, North America.
Deutschland: Zugvogel, Wintergast RL R
Calls: Male call carries only a few meters: a whistling "po-ho" last syllable slowly descending. Female calls with harsh "harr-harrr-harrr". [Link]
Physical details: length=42-51 cm, wingspan=72-84 cm, weight=700-1300 g
Habitats: River and lake
Looks similar to: Red-breasted merganser.
🔍 No documented observation