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Sea Bird

Arctic skua

Stercorarius parasiticus

The Arctic skua is a strong, agile seabird known for its piratical feeding habits, often chasing other birds to steal their catch. It breeds in the Arctic and winters at sea across the oceans.

At a glance

Quick field summary

The Arctic skua is a strong, agile seabird known for its piratical feeding habits, often chasing other birds to steal their catch. It breeds in the Arctic and winters at sea across the oceans.

Best seenSummer
HabitatSea
DietInsects, seeds and berries
StatusAmber
Identification

How to identify Arctic skua

Medium-sized seabird with a robust body, pointed wings and a slightly hooked bill. Adults in breeding plumage show dark brown upperparts with white flashes on the wings and a pale underbelly. In flight, a distinctive white wing flash is visible on the primary feathers.

  • White primary wing flashes, dark brown plumage, pale underparts, slightly hooked bill, and blackish tail with a shallow fork.
Where to see it

Habitat, range and timing

Commonly seen offshore around UK coasts during summer months, especially in northern and western Scotland. Look for them chasing gulls and terns at sea.

Use this section to describe the main UK regions, habitats and hotspots where this bird is most likely to be seen.

  • Scotland and northern England
  • Wales and western valleys
  • Southern England and coastal sites
Spring Breeding activity increases and birds become easier to locate by call and display.
Summer Look for family groups, feeding behaviour and regular movement between food sources.
Autumn Numbers and locations can shift as birds follow seasonal food and weather patterns.
Winter Use habitat, silhouette and flock behaviour to pick it out in mixed groups.
Behaviour

Song, movement and nesting

Known for aggressive chasing and pirating food from other seabirds; vocal calls include harsh, chattering notes especially during breeding season.

Nests on the ground in tundra or moorland habitats near the sea, building simple scrapes lined with moss and grass. Usually lays 2 eggs.

Gallery

Photos and plumage details

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Similar birds

Use shape, plumage and habitat together to separate close matches in the field.

Keep exploring

Discover more British birds

Browse a few more field guides and keep building your knowledge of the birds around you.

Questions

Common questions

What does the Arctic skua eat?

Primarily fish, often stolen from other seabirds.

Where do Arctic skuas breed?

In Arctic tundra and northern moorland regions.

Are Arctic skuas aggressive?

Yes, especially when pirating food or defending nests.

When is the best time to see Arctic skuas in the UK?

During summer months offshore around northern and western coasts.