Pallas’s Gull

Identification

Pallas's gull, also known as the great black-headed gull, is a massive waterbird and the world's largest black-headed gull—the third largest gull species overall. Adults measure 55–72 cm in length with a wingspan of 142–170 cm, and typically weigh around 1.6 kg in males and 1.22 kg in females. Summer plumage is unmistakable: a striking black hood contrasts sharply with grey wings and back, white "mirrors" at the wing tips, yellow legs, and an orangey-yellow bill tipped with red. In all other plumages, a dark eye-mask reveals vestiges of the distinctive hood. Young birds develop grey upperparts relatively quickly but require four years to reach full maturity.

Range & Habitat

This species breeds in colonies across marshes and islands stretching from southern Russia to Mongolia. It is highly migratory, wintering in the eastern Mediterranean, Arabia, and India. Pallas's gull occurs irregularly as a vagrant across much of western Europe and along the northern and eastern coasts of Africa, visiting these regions annually but unpredictably. The bird is exceptionally rare in Great Britain, with only a single accepted record from 1859.

Behaviour & Diet

Pallas's gulls are predatory birds with a deep, rather nasal flight-call that resembles that of the lesser black-backed gull. Paradoxically, while they are notably noisy at breeding colonies, they remain largely silent during the breeding season itself. These opportunistic hunters feed on fish, crustaceans, insects, and even small mammals. Ground-nesting birds, females lay between two and four eggs per clutch.

Best Time & Places to See It

Your best chances of observing this impressive gull lie in its wintering grounds around the eastern Mediterranean, Arabia, and India during winter months. Those in Africa may encounter them irregularly along northern and eastern coasts on an annual basis. Breeding colonies in southern Russia and Mongolia during the breeding season offer opportunities for dedicated birders, though access may be challenging. Western European sightings are extremely rare and unpredictable.

Photography Tips

The bold black hood and large size of breeding adults make them relatively straightforward photographic subjects in good light. Capture the striking contrast between the black head and grey upperparts, and aim to include the distinctive white wing-mirrors and colourful bill and legs. Non-breeding birds and immatures present greater challenges, so focus on the diagnostic dark eye-mask. The bird's deep calls provide audio confirmation when visibility is limited. Early morning light at breeding colonies will best reveal the plumage details that distinguish this impressive species.