Great Skua illustration
Birdsong field guide

Great Skua

Stercorarius skua

A large, powerful, and aggressive predatory seabird known for its kleptoparasitic behavior and heavy-set appearance.

What it sounds like

A low, harsh, rhythmic barking 'hah-hah-hah-hah' or a nasal, rasping 'skeerr'.

Reference call, compare with what you heard
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Rec. Erik Normark · NorwayCC BY-NC-NDXeno-canto

Field notes

  • It is a notorious kleptoparasite, often harassing other birds until they regurgitate their food.
  • Aggressively defends its nest by dive-bombing intruders, including humans, often striking with its feet.
  • Features distinctive white 'flashes' or patches at the base of its primary wing feathers visible in flight.
  • Diet is highly opportunistic, including fish, offal, and even killing smaller seabirds like puffins and kittiwakes.
  • It is a long-lived species, with some individuals reaching over 30 years of age in the wild.
Habitat
Coastal moorlands and rocky islands for breeding; largely pelagic during the non-breeding season.
Range
Breeds in the Northeast Atlantic (Scotland, Iceland, Faroe Islands, Norway); winters in the open Atlantic.

Similar & commonly confused birds

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