Glaucous Gull vs Iceland Gull

In short

The Glaucous Gull and Iceland Gull are both pale gulls, but the Glaucous Gull is larger and lacks black wingtips, which are often present in Iceland Gulls. In the field, size and wingtip coloration are the most reliable differences.

Identification tips

1. Size: Look for the larger size and bulkier build of the Glaucous Gull. 2. Wingtips: Check for the absence of black markings on the wingtips of Glaucous Gulls. 3. Plumage: Note the more uniformly pale appearance of the Glaucous Gull compared to the Iceland Gull.

Size

The Glaucous Gull is significantly larger and bulkier than the Iceland Gull, with a more robust build.

Plumage

Glaucous Gulls have entirely pale wingtips, while Iceland Gulls often show some gray or black markings on the wingtips. Both species have pale plumage overall, but the Glaucous Gull appears more uniformly white.

Behaviour

Both species exhibit similar feeding behaviors, often seen scavenging or pirating food from other birds.

Habitat

Both species can be found in coastal and tundra habitats, often nesting on cliffs. However, the Glaucous Gull is more likely to be found in more northerly and isolated regions.