Common Gull vs Iceland Gull

In short

The Common Gull and Iceland Gull can be distinguished by their plumage and structural differences. The Common Gull generally has a darker eye and a medium to pale gray mantle, while the Iceland Gull is known for its paler plumage and lack of black markings on the wingtips. These differences are most noticeable in adult birds.

Identification tips

1. Eye Color: Common Gulls generally have darker eyes than Iceland Gulls. 2. Mantle Color: Look for the medium to pale gray mantle of the Common Gull versus the paler mantle of the Iceland Gull. 3. Wingtips: Check for black markings on the wingtips of Common Gulls, absent in Iceland Gulls. 4. Bill Size: The Common Gull has a slightly larger bill compared to the more delicate bill of the Iceland Gull. 5. Location: Consider the habitat; Common Gulls are more widespread, while Iceland Gulls are typically found in Arctic and sub-Arctic regions.

Size

The Common Gull is medium-sized with a slightly heavier build and larger bill compared to the Iceland Gull, which is generally more delicate in appearance.

Plumage

Common Gulls have a medium to pale gray mantle and typically lack the extensive white spots on the primaries seen in Iceland Gulls. Iceland Gulls have paler plumage overall, with wingtips lacking the black markings found in Common Gulls.

Habitat

Common Gulls are often found in a variety of habitats including coastal and inland areas, while Iceland Gulls are more associated with Arctic regions and coastal cliffs.