Family: Anatidae (Ducks, Geese, Swans)

Authority: (Sharpe, 1875)

Red List Category:

Criteria: A3e
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Justification of Red List category
It is projected that this species could undergo a rapid decline in the near future owing to predation by feral cats, and it therefore qualifies as Vulnerable.

Population size: 31200-41400 mature individuals

Population trend: decreasing

Extent of occurrence (breeding/resident): 169,000 km²

Country endemic: yes

Attributes
Land-mass type - oceanic island
Realm - Afrotropical
Realm - Antarctic
IUCN System - Freshwater
IUCN System - Marine