NT
Norfolk Gerygone Gerygone modesta



Family: Acanthizidae (Thornbills and gerygones)

Authority: Pelzeln, 1860

Red List Category

Criteria: D2

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Justification of Red List category
This species is classified as Near Threatened because although it has a very small range and population on a single island, its population is estimated to be stable or increasing and it has not been significantly affected by introduced predators, including rats, and therefore there is not thought to be any plausible threat likely to lead to very rapid future declines. If such a plausible future threat were to be identified it would warrant classification as Vulnerable, and any evidence of declines would likely lead to its reclassification in a higher threat category.



Population size: 10000

Population trend: Stable

Extent of occurrence (breeding/resident): 45 km2

Country endemic: Yes

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

Recommended citation
BirdLife International (2017) Species factsheet: Gerygone modesta. Downloaded from http://www.birdlife.org on 23/07/2017. Recommended citation for factsheets for more than one species: BirdLife International (2017) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 23/07/2017.