Lesser White-fronted Goose vs Tundra Bean Goose

In short

The Lesser White-fronted Goose and Tundra Bean Goose can be distinguished primarily by the Lesser's yellow orbital ring and smaller size. The Tundra Bean Goose is larger with a more robust build and lacks the distinctive white blaze of the Lesser White-fronted Goose.

Identification tips

1. Look for the yellow orbital ring on the Lesser White-fronted Goose. 2. Note the white forehead blaze on the Lesser White-fronted Goose, absent in the Tundra Bean Goose. 3. Observe the smaller size and shorter neck of the Lesser White-fronted Goose. 4. Listen for the higher-pitched call of the Lesser White-fronted Goose. 5. Check for black belly markings on the Lesser White-fronted Goose, which are absent in the Tundra Bean Goose.

Size

The Lesser White-fronted Goose is smaller, measuring 53–66 cm in length, while the Tundra Bean Goose is larger, ranging from 66–80 cm.

Plumage

The Lesser White-fronted Goose has a striking white forehead blaze and black belly markings, while the Tundra Bean Goose has a brown gradient from neck to head with no white blaze and a more uniform brown body.

Behaviour

Lesser White-fronted Geese exhibit faster wingbeats and more agile flight compared to the Tundra Bean Goose.

Voice

The Lesser White-fronted Goose has a higher-pitched, more whistling call compared to the Tundra Bean Goose.