Fulvous Whistling-Duck vs White-backed Duck

In short

The Fulvous Whistling-Duck and White-backed Duck can be distinguished primarily by their plumage and habitat preferences. The Fulvous Whistling-Duck has a more uniform fulvous coloration, while the White-backed Duck features a distinctive white back. Both species are similar in size, but their preferred habitats and behaviors offer additional clues.

Identification tips

1. Look for the white back of the White-backed Duck, which is absent in the Fulvous Whistling-Duck. 2. Observe the habitat: Fulvous Whistling-Ducks are more likely in open, flooded fields, while White-backed Ducks prefer dense vegetation. 3. Listen for the two-noted call of the Fulvous Whistling-Duck, especially at night.

Size

Both species are similar in size, typical of medium-sized ducks.

Plumage

The Fulvous Whistling-Duck is predominantly fulvous with a darker back and wings, while the White-backed Duck has a striking white back that contrasts with its otherwise dark plumage.

Behaviour

Fulvous Whistling-Ducks are often found in flocks and are more likely to be seen in open areas, while White-backed Ducks are more secretive, often hiding in dense vegetation.

Habitat

Fulvous Whistling-Ducks prefer flooded rice fields and other open wetlands, whereas White-backed Ducks are typically found in densely vegetated freshwater wetlands.

Voice

Fulvous Whistling-Ducks have a distinctive two-noted raspy call, often heard at night. The vocalizations of the White-backed Duck are less well-documented but are not known for frequent calling.