Uccelli simili a Black-headed Gull

Key differences

The Mediterranean Gull has a truly black head (not chocolate-brown) in breeding plumage, a stouter, all-red bill, and lacks the black wingtips of the Black-headed Gull. In flight, it shows entirely white primary feathers, lacking the black tips and white leading edge of the Black-headed Gull. Its call is also distinct, a deeper 'kwaa' or 'kyaah'.

Key differences

The Little Gull is significantly smaller, has a black head (breeding plumage), and a very small, dark bill. In flight, it has dark underwings (Black-headed Gull has white underwings) and a more buoyant, tern-like flight. Juveniles have a 'W' pattern across the wings.

Key differences

Primarily a North American species, but can occur as a vagrant in Europe. Similar in size and appearance to Black-headed Gull, but has a black bill (not red) and a more extensive black hood in breeding plumage. In flight, it shows a white triangle on the outer primaries, contrasting with the Black-headed Gull's white leading edge.