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Latin name

Larus fuscus

Family

Gulls (Laridae)

Overview

Slightly smaller than a herring gull, the lesser black-backed gull has a dark grey to black back and wings, yellow bill and yellow legs. Their world population is found entirely in Europe. After declines in the 19th century due to persecution they increased their range and numbers. This expansion has now halted and there is serious concern about declines in many parts of its range. The species is on the Amber List because the UK is home to 40% of the European population and more than half of these are found at fewer than ten sites.

Where to see them

Found around the UK's coastline in summer and on some inland high moors. The biggest UK colony is on Walney Island, Cumbria with a staggering one third of the UK population. More than half the UK population is found at fewer than ten sites. They are increasingly common in urban habitats, even in inland locations such as the West Midlands. In winter it is mainly found from southern Scotland southwards, and is best looked for feeding over fields and at rubbish tips, congregating at large reservoir roosts each evening.

When to see them

All year round. UK breeding sites are left in July and August and birds start to return as early as December. Large numbers of Scandinavian birds, which are darker than UK breeding birds, start to arrive in October.

What they eat

Omnivore - scavenges a wide range of food.

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)

3 illustrations 123

Adult

Lesser black-backed gull - second-winter

Juvenile

Similar birds

Great black-backed gull

Herring gull

Yellow-legged gull