Family: Ardeidae (Herons)

Authority: (Wagler, 1827)

Red List Category

Criteria: C2a(i)

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Justification of Red List category
This species has a small population that is declining primarily owing to the degradation of its wetland habitats, with less than 1,000 mature individuals in the largest subpopulation if, precautionarily, the plausible lower bound is followed. For these reasons it is assessed as Vulnerable.

Population size: 1000-2499

Population trend: Decreasing

Extent of occurrence (breeding/resident): 10,200,000 km²

Country endemic: No

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