Glaucous Gull

The Glaucous Gull (Larus hyperboreus) is a majestic bird, ranking as the second-largest gull in the world. Its name, derived from Latin and Ancient Greek, reflects its northern roots and the pale grey hue of its plumage. Historically known as the burgomaster, this bird exudes an air of authority in its Arctic domain.

Identification Tips

Adult Glaucous Gulls are distinguished by their pale grey upperparts and a robust, yellow bill. In contrast, juveniles display a very pale grey plumage complemented by a pink and black bill. These gulls are larger and bulkier than their relative, the Iceland Gull, and can rival the size of the Great Black-backed Gull. With a wingspan reaching up to 182 cm, they are a formidable presence in the sky.

Habitat

Breeding in the Arctic regions of the Northern Hemisphere, the Glaucous Gull makes its home on coasts and cliffs. It is adept at creating a lined nest on the ground or cliff edges, where it can keep a watchful eye over its domain.

Distribution

The Glaucous Gull is a migratory species, wintering from the North Atlantic and North Pacific Oceans to as far south as the British Isles and the northernmost states of the United States. Occasionally, a few adventurous souls may venture further to the southern USA and northern Mexico.

Behaviour

Taking four years to reach maturity, these gulls exhibit a variety of behaviors typical of the Larus genus. They are known to breed colonially or singly, showcasing a versatile approach to raising their young.

Song & Calls

The Glaucous Gull's call is reminiscent of the herring gull's "laughing" cry, though it possesses a deeper timbre that resonates across the Arctic landscapes.

Breeding

During the breeding season, Glaucous Gulls lay two to four light brown eggs adorned with dark brown splotches, a testament to their resilience in the harsh Arctic environment.

Diet and Feeding

True omnivores, Glaucous Gulls have a diet that includes fish, insects, molluscs, starfish, offal, scraps, eggs, small birds, small mammals, carrion, seeds, berries, and grains. Their feeding habits reflect the opportunistic nature of these gulls, able to thrive on a wide range of sustenance.

Conservation status

The Glaucous Gull is currently listed as Least Concern on the IUCN Red List, indicating a stable population across its vast range.