Russian: Серая утка
Mongolian: Бор нугас
Japanese: オカヨシガモ (Oka-yoshigamo)
Body Length: 46-56 cm
Wing span: 78-90 cm
Breeding season: May-September
Egg number: 8-12
Egg color: Creamy white or tinted pale green
Brood: 1 per year
Global status: Least concern
Regional status: Least Concern
Habitat: Breeds on variety of fresh (and rarely brackish) waters,
mostly on eutrophic lakes or bays with reedbeds and wooded islets. Local
breeder in Britain, partly introduced, increasing.
Slightly smaller than Mallard, and of slimmer build with narrower wings and
body. In flight, note whitish belly (Mallard pale brownish). Main feature is
small white speculum, but note that this is prominent only on adult ♂ (limp od
‘sugar’), and practically nonexistent on juvenile ♀. Adult ♂ breeding: Head
medium brown; stern black (but tail pale brown), rest of body grey, finely
vermiculated, boldest on breast; long scapulars pale grey-buff; bill
grey-black. In flight, prominent white speculum, and black and chestnut on
♀: Resembles Mallard, but has whitish belly, small white speculum, different
bill pattern with orange even stripe along cutting edges, and darker brown-grey
♂ eclipse: As ♀ but retains adult ♂ eclipse: As ♀ but
retains adult ♂ wing; bill with some orange, recalling ♀.
As adult ♀ but body colour brighter buff, contrasting with greyer head.
Short green plants in wet meadow and invertebrates.