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Latin name

Catharacta skua

Family

Skuas (Stercorariidae)

Overview

The great skua is an aggressive pirate of the seas, deliberately harrassing birds as large as gannets to steal a free meal. It also readily kills and eats smaller birds such as puffins. Great skuas show little fear of humans - anybody getting close to the nest will be repeatedly dive-bombed by the angry adult. These birds migrate to the northernmost isles of the UK from their wintering grounds off the coasts of Spain and Africa. At a distance they look stout and dark and show white wing flashes in flight.

Where to see them

In breeding areas on coastal rocky islands and moorland; at other times seen around coasts, often in the neighbourhood of seabird colonies, scavenging from other birds, or picking food from the surface of the sea.

When to see them

Arrives at its breeding grounds in April and leaves in July. Look for it offshore in spring and especially in late summer and early autumn when it is migrating along western and eastern shores of the UK.

What they eat

Fish, carrion, other birds

Estimated numbers

* UK breeding is the number of pairs breeding annually. UK wintering is the number of individuals present from October to March. UK passage is the number of individuals passing through on migration in spring and/or autumn.

Distribution

Please note that the map is only intended as a guide. It shows general distribution rather than detailed, localised populations.

Find out more

• Videos

Audio is from commercial recordings Bird Songs and Calls of Britain and Europe on 4 CDs or Bird Sounds of Europe & North-west Africa, copyright WildSounds & CEBA (www.wildsounds.com, (UK) +44 (0) 1263 741100)

2 illustrations 12

Adult

Juvenile

Similar birds

Arctic skua

Pomarine skua