Yellow-legged Gull vs Lesser Black-backed Gull

In short

The Yellow-legged Gull and Lesser Black-backed Gull can be distinguished by their leg color and mantle shade. Yellow-legged Gulls have bright yellow legs and a paler gray mantle, while Lesser Black-backed Gulls have yellow to orange legs and a darker slate-gray mantle. Both species are large gulls with similar habits, but these color differences are key in identification.

Identification tips

• Leg color: Yellow-legged Gulls have bright yellow legs; Lesser Black-backed Gulls have yellow to orange legs.
• Mantle color: Yellow-legged Gulls have a paler gray mantle; Lesser Black-backed Gulls have a darker slate-gray mantle.
• Geographic range: Consider location, as Yellow-legged Gulls are more common in southern Europe, while Lesser Black-backed Gulls are prevalent in northern Europe.

Size

Both species are similar in size, with the Yellow-legged Gull being slightly bulkier.

Plumage

Yellow-legged Gulls have a pale gray mantle and bright yellow legs, while Lesser Black-backed Gulls have a darker slate-gray mantle and yellow to orange legs. Both have white heads and underparts.

Behaviour

Both species are opportunistic feeders, often seen scavenging in similar environments.

Habitat

Both species are adaptable and can be found in coastal areas, urban environments, and near human activity. Yellow-legged Gulls are more common in southern Europe, while Lesser Black-backed Gulls are found across northern Europe.

Voice

Vocalizations are similar and not a reliable field mark for distinguishing these species.