Essential Glaucous Gull Information
The Glaucous Gull is a large and powerful seabird native to the Arctic. Known for its pale gray upperparts and white underparts, this gull has no black wingtips, setting it apart from many other gull species. Its thick yellow bill, with a red spot, is another distinctive feature.
Physical Characteristics
The Glaucous Gull is among the largest gull species, with a wingspan of up to 1.8 meters (70 inches) and a body length of up to 75 cm (30 inches). The largest specimens can weigh nearly 3 kg (6 lbs), making them one of the heaviest gulls in the world. Despite having the second-largest wingspan among gulls, they are particularly known for their weight and powerful build.
Habitat and Migration
During the summer, Glaucous Gulls breed in the Arctic, and as the colder months approach, they migrate further south to overwinter. They can be found in coastal regions, where they are often seen scavenging or hunting near other Arctic predators such as polar bears.
Behavior and Diet
Glaucous Gulls are opportunistic feeders, known for their diverse diet. They will eat fish, shellfish, carrion, small mammals, and even berries and seeds. However, they are also notorious predators, often targeting the eggs and chicks of other birds. These gulls have been known to swallow guillemot chicks whole as they leave their nests, and they can even take down adult kittiwakes. It’s common to see them hanging around polar bear kills, taking advantage of any leftovers.
Nesting
These gulls nest either in colonies or alone, depending on the availability of suitable sites. Their nests are typically built on the ground or on cliffs, lined with materials to provide insulation for their eggs.
Interesting Facts
- Powerful Predators: Glaucous Gulls are capable of preying on smaller seabirds and even adult kittiwakes.
- Opportunistic Scavengers: They often scavenge at polar bear kills and take advantage of other animals' prey.
- Heavyweights: With a wingspan of up to 1.8 meters, they are among the largest and heaviest gulls.
