Grey Gull vs American Herring Gull

In short

The Grey Gull and American Herring Gull can be distinguished by their plumage and habitat preferences. Grey Gulls have a uniform gray plumage adapted for desert nesting, while American Herring Gulls have a more typical white and gray pattern and are found near coastal and freshwater habitats.

Identification tips

1. Plumage: Look for the uniform gray color of the Grey Gull versus the white and gray pattern of the American Herring Gull. 2. Size: Note the larger size and bulkier build of the American Herring Gull. 3. Habitat: Consider the location; Grey Gulls are found in desert regions, whereas American Herring Gulls are near coasts and freshwater bodies.

Size

American Herring Gulls are generally larger and bulkier than Grey Gulls.

Plumage

Grey Gulls have a uniform gray plumage, which helps them adapt to hot, sunny desert environments. In contrast, American Herring Gulls have a more typical gull appearance with a white head and underparts, gray wings and back, and black wingtips.

Behaviour

Grey Gulls are known for their unique breeding behavior, nesting in the deserts of northern Chile and commuting to the sea for food. American Herring Gulls exhibit typical gull behavior, often seen scavenging and foraging along coastlines and inland waters.

Habitat

Grey Gulls breed in the extreme deserts of northern Chile, while American Herring Gulls are found across North America, often near coastal and freshwater habitats.