Green Pygmy Goose

Identification

The green pygmy goose is one of the smallest duck species, measuring just 30 to 36 cm in length with a wingspan of 48 to 60 cm. It has a distinctive compact form and small bill. The breeding male is particularly striking, with a predominantly dark green back and neck contrasted by a dark gray crown and white cheeks. The underparts are pale grey and white with scalloped markings, while the tail and primary flight feathers are black. The secondary flight feathers are white, and the secondary coverts display a dark iridescent green that catches the light beautifully. Outside the breeding season, males lose this iridescence and their plumage becomes duller. Females show sexual dimorphism, with a barred rather than green neck but otherwise resembling the non-breeding male. Immature birds are less brightly coloured with mottled dark brown heads. Males have a distinctive high-pitched whistle, while females produce a lower-pitched call.

Range & Habitat

This species is found in southern New Guinea and across northern Australia, from Western Australia through the Northern Territory and into Queensland. It commonly reaches Timor-Leste, where it possibly breeds at Lake Iralalara. The green pygmy goose favours well-vegetated lowland lagoons and other permanent fresh waters, where aquatic vegetation provides both shelter and food resources.

The species is largely resident throughout its range, though it disperses during the wet season when water becomes more widely available across the landscape.

Behaviour & Diet

The green pygmy goose is a perching duck, reflecting its adaptation to life around vegetated waterways. It nests in tree hollows, a behaviour uncommon among many duck species. Females typically lay eight to twelve eggs, with an incubation period of 26 days. This nesting strategy allows the species to utilise habitats where suitable hollow trees are available near permanent water.

Best Time & Places to See It

To observe green pygmy geese, focus on well-vegetated lowland lagoons and permanent freshwater bodies in northern Australia and southern New Guinea. The wet season is particularly rewarding, as birds disperse more widely across the landscape during this period. Queensland, the Northern Territory, and Western Australia all offer opportunities, as does Timor-Leste for those travelling to that region.

Photography Tips

The striking plumage of breeding males makes them rewarding photographic subjects, particularly the iridescent green of the secondary coverts which requires good lighting to capture effectively. Focus on the contrasting white cheeks and dark green back of breeding males for the most visually striking images. Early morning light often best reveals the iridescent qualities of the plumage. As these are small ducks frequenting vegetated waterways, approach slowly and quietly to avoid disturbance, and consider longer telephoto lenses to maintain distance while capturing detail.