Graylag Goose illustration
Birdsong field guide

Graylag Goose

Anser anser

The Graylag Goose is a large, heavy-bodied waterfowl characterized by its orange or pink bill and pink legs, widely recognized as the wild ancestor of most domestic geese.

What it sounds like

A loud, deep, and resonant 'honk' or 'ga-ga-ga' nearly identical to that of a domestic goose.

Reference call, compare with what you heard
0:00 / 0:36
Rec. Lars Edenius · SwedenCC BY-NC-SAXeno-canto

Field notes

  • It is the largest and bulkiest species within the 'grey goose' genus Anser.
  • Ethologist Konrad Lorenz used this species to conduct his pioneering studies on imprinting behavior.
  • The birds undergo a simultaneous wing-moult after breeding, leaving them flightless for approximately one month.
  • They are highly gregarious and form lifelong monogamous pair bonds within stable family units.
  • The species is divided into two distinct subspecies: the orange-billed western population and the pink-billed eastern population.
Habitat
Freshwater marshes, lakes, reedbeds, and adjacent agricultural fields or grasslands.
Range
Widespread across the Palearctic, spanning from Iceland and Europe to China.

Similar & commonly confused birds

Heard a Graylag Goose?

Open Birdsong, tap record, and identify the bird singing near you in seconds — then collect it in your field journal.

Identify a bird by its song