Greater White-fronted Goose vs Lesser White-fronted Goose

In short

The yellow orbital ring of the Lesser White-fronted Goose is the most reliable field mark to distinguish it from the Greater White-fronted Goose. Lesser White-fronted Geese are also smaller with a shorter neck and a more compact appearance. Both species have a white blaze on the forehead, but the Lesser's blaze is more pronounced.

Identification tips

• Look for the yellow orbital ring on the Lesser White-fronted Goose.
• Note the size and structure: Lesser is smaller with a shorter neck.
• Check the forehead blaze: Lesser's blaze is more pronounced and reaches the forecrown.
• Observe the belly markings: Lesser's do not extend as high up the body sides.
• Listen for the call: Lesser's is higher-pitched and more whistling.

Size

The Lesser White-fronted Goose is smaller than the Greater White-fronted Goose, with a shorter neck and more compact body.

Plumage

Both species have a white blaze on the forehead, but the Lesser White-fronted Goose's blaze extends to the forecrown and it has a uniformly darker brown head and neck. The Lesser also has a yellow orbital ring and belly markings that do not extend as high up on the body sides.

Behaviour

Both species are gregarious outside of the breeding season, often forming flocks with other geese. The Lesser White-fronted Goose may exhibit faster wingbeats and more agile flight.

Habitat

Both species share similar habitats, favoring wetlands and agricultural fields during migration and winter. The Greater White-fronted Goose has a broader range, while the Lesser is more localized.

Voice

The Lesser White-fronted Goose has a higher-pitched call that is clearer and more whistling compared to the Greater's more muffled call. The Lesser's call is typically two or three syllables long.