Tinian Monarch Metabolus takatsukasae

Family: Monarchidae (Monarchs)

Authority: (Yamashina, 1931)

Red List Category

Criteria: A3ce+4be; D2

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Justification of Red List category
Although this species has a large population, it qualifies as Vulnerable because of its tiny range, the existance of a military lease over the majority of its range, and fears that the brown tree-snake Boiga irregularis could become established on its island, resulting in a rapid population reduction. The near-miss of typhoon Keith, which caused extensive damage when it passed just south of Tinian in November 1997, and severe damage from super typhoon Soudelor in August 2015, illustrates the vulnerability of a species confined to a single small island. 

Population size:

Population trend: Stable

Extent of occurrence (breeding/resident): 130 km2

Country endemic: Yes

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

Recommended citation
BirdLife International (2020) Species factsheet: Metabolus takatsukasae. Downloaded from on 26/10/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from on 26/10/2020.