Anser

Anser is a genus of geese in the Anatidae family. The genus includes the greylag goose (Anser anser), the pink-footed goose (Anser brachyrhynchus), and the greater white-fronted goose (Anser albifrons) among others. These birds are typically found in the Northern Hemisphere and are known for their migratory behavior.

Taxonomy

The genus Anser was introduced by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his Systema Naturae. The name Anser is the Latin word for "goose".

Species

The genus Anser includes the following species:

• Greylag goose (Anser anser)
• Pink-footed goose (Anser brachyrhynchus)
• Greater white-fronted goose (Anser albifrons)
• Lesser white-fronted goose (Anser erythropus)
• Bean goose (Anser fabalis)
• Tundra bean goose (Anser serrirostris)

Description

Members of the genus Anser are medium to large-sized birds with a robust body, long neck, and large wings. They have a characteristic honking call and are known for their strong, direct flight. The plumage is generally grey or brown with white markings on the underparts and tail.

Habitat and Distribution

Anser species are found in a variety of habitats including wetlands, lakes, rivers, and coastal areas. They breed in the Arctic and subarctic regions and migrate to more temperate areas during the winter.

Behavior

These geese are highly social birds, often forming large flocks during migration and in their wintering grounds. They are primarily herbivorous, feeding on grasses, roots, and seeds. During the breeding season, they nest on the ground, often in colonies.

Conservation

Several species within the genus Anser are of conservation concern due to habitat loss, hunting, and climate change. Conservation efforts are in place to protect their breeding and wintering habitats.

Related Pages

• Goose
• Anatidae
• Anseriformes
• Bird migration
• Wetland