Herring Gull vs Armenian Gull

Herring Gull and Armenian Gull are similar large gulls, but can be distinguished by key structural and plumage differences. The Armenian Gull has a shorter bill and a more rounded head compared to the Herring Gull. In flight, the Armenian Gull shows a more extensive black on the wingtips with smaller white mirrors.

1. Bill and Head Shape: Armenian Gull has a shorter bill and more rounded head. 2. Wing Pattern: In flight, look for more extensive black on wingtips of Armenian Gull with smaller white mirrors. 3. Mantle Color: Armenian Gull has a darker gray mantle. 4. Habitat: Consider location; Armenian Gulls are more localized to specific regions.

Both species are similar in size, but the Herring Gull is slightly larger and bulkier.

The Armenian Gull has a darker mantle compared to the paler gray of the Herring Gull. The Armenian Gull's wingtips have more extensive black with smaller white mirrors, while the Herring Gull typically shows larger white mirrors.

Both species exhibit similar behaviors typical of large gulls, such as scavenging and loafing in flocks.

Herring Gulls are more widespread and can be found in a variety of coastal and inland habitats, while Armenian Gulls are more localized, primarily found around lakes and reservoirs in their range.

Vocalizations are similar and not a reliable distinguishing feature in the field.