Justification of Red List category
This species was known from New Zealand's North and South Island, but became Extinct for unknown reasons some time in the 1890s.
Population justification
No extant population remains.
Trend justification
The species was last recorded in the 1890s and became extinct before 1900, for unknown reasons (Tennyson and Martinson 2006, Hume 2017).
Ixobrychus novaezelandiae was endemic to New Zealand, known from North and South Island (Hume 2017).
It is likely to have inhabited freshwater wetlands and saltwater lagoons (Hume 2017).
Reasons for its extinction are not known, but introduced predators and hunting are responsible for the demise of most of New Zealand's endemic species.
Text account compilers
Vine, J.
Recommended citation
BirdLife International (2024) Species factsheet: New Zealand Little Bittern Ixobrychus novaezelandiae. Downloaded from
https://datazone.birdlife.org/species/factsheet/new-zealand-little-bittern-ixobrychus-novaezelandiae on 18/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 18/12/2024.