The white-winged duck or white-winged wood duck is a large species of duck, formerly placed in the genus Cairina with the Muscovy duck and allied with the dabbling ducks. However, mtDNA cytochrome b and NADH dehydrogenase subunit 2 sequence analysis indicate that the anatomical similarity to the Muscovy duck is deceiving and that the species is appropriately placed in a monotypic genus, as Asarcornis scutulata, which is evolutionarily closer to the redhead.
Region
South and Southeast Asia
Typical Environment
Occurs patchily from northeastern India and Bangladesh through Myanmar, Thailand, Laos, Cambodia, and peninsular Malaysia, with a key population on Sumatra (Indonesia). It favors secluded lowland forest swamps, oxbow lakes, and slow-flowing forested streams with dense overhanging vegetation. Peat-swamp and evergreen forest pools are important refuges, often far from human disturbance. It avoids open wetlands and tends to use shaded, tea-colored waters beneath closed canopy.
Altitude Range
0–500 m
Climate Zone
Tropical
Ease of Keeping
Beginner friendly: 1/5
Also called the white-winged wood duck, it is the sole member of the genus Asarcornis and one of the largest forest-dwelling ducks. It is extremely shy and crepuscular, often remaining hidden in dense lowland forest swamps. The bold white wing patch flashes conspicuously in flight but is mostly concealed at rest. Rapid loss of forested wetlands and hunting have caused severe declines across its range.
Temperament
shy and secretive
Flight Pattern
strong flier with steady, powerful wingbeats
Social Behavior
Usually found singly, in pairs, or small family groups; it maintains large, secluded territories along forested waterways. Nests are typically in tree cavities or hollows near water, using down to line the nest. Breeding pairs are strongly attached to secluded sites and show high site fidelity.
Migratory Pattern
Resident
Song Description
Vocalizations include low, hoarse quacks, grunts, and nasal honks, often given at dusk. Wingbeats can produce a loud whooshing sound in flight. Females may give sharper quacks, while males utter deeper calls.
