Family: Anatidae (Ducks, Geese, Swans)

Authority: (Gray, 1844)

Red List Category

Criteria: B1a+2a; D1

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Justification of Red List category
This species has a small population and the population size is uncertain. The range is very small and there are few locations, but the population size and range are stable. For these reasons, the species is classified as Near Threatened.

Population size: 330-1700, 1000-1700

Population trend: Stable

Extent of occurrence (breeding/resident): 1,000 km²

Country endemic: Yes

Attributes
Land-mass type - oceanic island
Realm - Oceanic
IUCN Ecosystem -- Freshwater biome