• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

Justification of Red List category
This species was lost from both islands where it used to occur in the late 1800s or early 1900s and is now Extinct, likely as a result of introduced predators. 

Population justification
None remain.

Trend justification
Acrocephalus musae went extinct on the islands of Raiatea and Huahine respectively, in the Society Islands, French Polynesia, in the late 1800s or early 1900s (Hume 2017).

Acrocephalus musae was known from the Society Islands, French Polynesia.

Little known. It may have bred exclusively in bamboo thickets (P. Raust in litt. 2007).

The introduction of feral cats Felis catus, rats Rattus spp. (A. Gouni in litt. 2012) and many alien bird species, including the aggressive Common Myna Acridotheres tristis, may have contributed to its extinction (Thibault 1988, Seitre and Seitre 1991).

Text account compilers
Vine, J.

Contributors
Gouni, A. & Raust, P.

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Recommended citation
BirdLife International (2024) Species factsheet: Forster's Reed-warbler Acrocephalus musae. Downloaded from https://datazone.birdlife.org/species/factsheet/forsters-reed-warbler-acrocephalus-musae on 22/11/2024.
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 22/11/2024.