Australian Shelduck

Identification

The Australian Shelduck is a striking and unmistakable waterfowl, measuring 56–72 centimetres in length with a wingspan of 94–132 cm. Males are predominantly dark with a distinctive chestnut breast, white neck collar, and dark green head. Females are similar in plumage but noticeably smaller, with white markings around the eyes instead of a full collar. Both sexes display chestnut and black wings featuring a green speculum, with white patches visible in flight. Downy young are white with a brown crown and characteristic brown stripes running from crown to tail. Juvenile birds are duller than adults, with males lacking the distinctive white collar and females showing considerably more white plumage except on the crown.

In voice, these geese-like ducks are highly vocal. Males produce a deep honk reminiscent of geese, while females emit a distinctive high-pitched and penetrating "zeek, zeek" call that carries across water and open country. These vocal characteristics make Australian Shelducks easy to locate even when visibility is limited.

Range & Habitat

The Australian Shelduck primarily breeds in southern Australia and Tasmania, where populations remain fairly common. During winter, many birds migrate northward beyond their breeding range, making them a nomadic species across the continent. The species has preferred moulting grounds, notably Lake George in New South Wales, where sizeable concentrations gather seasonally. Their primary habitat consists of lakes in fairly open country, environments that provide both feeding and breeding opportunities.

Behaviour & Diet

Australian Shelducks are highly social waterfowl, often seen in flocks numbering up to 1000 or more individuals. They are extremely wary of humans and typically call loudly when people approach, though they can gradually become accustomed to human presence in urban areas. On land, they adopt an upright posture while grazing, and they sit high on the water. Young birds dive frequently, but adults rarely dive except during their flightless moulting period or when injured or frightened.

These ducks are versatile feeders, obtaining food through grazing, dabbling, and filtering. Their diet comprises tubers and other plant materials including saltbush and samphire, supplemented by a range of insects, crustaceans, and molluscs. Breeding occurs in tree holes lined with down, holes in banks, or similar cavities. Females lay eight to fifteen eggs, which are incubated for thirty to thirty-three days. After leaving the nest, flightless young aggregate in crèches of 20–40 birds, occasionally reaching 100.

Best Time & Places to See It

Southern Australia and Tasmania are the primary breeding regions, making these areas ideal for observing Australian Shelducks during the breeding season. Winter months offer opportunities to see populations that have migrated northward. Lake George in New South Wales is particularly notable for attracting large concentrations during moulting periods, making it an excellent destination for viewing multiple birds simultaneously. Lakes in open country throughout southern regions provide reliable habitat year-round, though numbers fluctuate seasonally.

Photography Tips

Photographers should approach slowly and cautiously, as these birds are extremely wary. Early morning and late afternoon typically offer the best lighting conditions for capturing the striking chestnut breast and dark plumage contrasts. Their high-sitting posture on water and upright stance on land provide good photographic profiles. Large flocks offer opportunities for dynamic composition shots, while individual birds showcase the fine details of their white collars, green heads, and wing patterns. Patient observation near moulting grounds in winter may reward photographers with impressive concentrations of birds.