White-winged Scoter illustration
Birdsong field guide

White-winged Scoter

Melanitta deglandi

The White-winged Scoter is a large, heavy-bodied sea duck recognized by its velvet-black plumage and distinctive white secondary feathers visible during flight.

What it sounds like

Generally silent, but produces thin, whistling notes and low-pitched croaks during courtship or when startled.

Reference call, compare with what you heard
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Rec. Andrew Spencer · CanadaCC BY-NC-SAXeno-canto

Field notes

  • It is the largest of the three scoter species native to North America.
  • Adult males feature a unique white comma-shaped patch around the eye and a swollen, orange-tipped bill.
  • They are specialized molluscivores, using powerful gizzards to crush and digest shellfish swallowed whole.
  • This species often exhibits 'creching' behavior, where a single female may lead a combined group of ducklings from multiple different broods.
  • They are among the latest-nesting ducks in North America, with females often not beginning incubation until late June or July.
Habitat
Breeds near freshwater lakes in boreal forests; winters in shallow coastal marine waters and estuaries.
Range
Breeds across Alaska and northwestern Canada; winters along the Pacific and Atlantic coasts of North America and the Great Lakes.

Similar & commonly confused birds

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