
Photo: (c) Andrew Bazdyrev, some rights reserved (CC BY) · CC-BY (May be cropped or resized)
Aythya ferina
Diet
Plant and seed; feeds mostly at night
Habitat
Marshes and lakes with a metre or more of water in the breeding season
Range
Breeds in Scandinavia and the Siberian steppe; winters farther south and west
Size
42–49cm; wingspan 72–82cm
Weight
467–1,240g (winter birds)
The common pochard is a plump, medium-sized diving duck 42–49 cm long with a wingspan of 72–82 cm, stocky and short-tailed, with a sloping forehead and relatively long bill. The male has a chestnut head and neck, a black breast and tail, and a pale grey body finely vermiculated; his bill is dark grey with a wide blue-grey band across the middle, and his iris is yellow-orange to red, brighter in the breeding season. Winter birds weigh 467–1,240 g (Wikipedia, general species account).
It is widespread across the Palearctic. It breeds primarily in Scandinavia and the steppe regions of Siberia, on marshes and lakes with a metre or more of water, and winters farther south and west. It does most of its feeding at night, and is a strong flier, reaching 49–54 mph in direct flight. SoIB 2023 rates it a High conservation priority: a winter migrant of wetlands with a rapid long-term decline of about 68%, a current decline of about 4% a year and a Large range (Wikipedia, general species account; SoIB 2023).