This species has an extremely small range on one small group of islands where it is currently common. The range is not yet severely fragmented or restricted to few locations. For these reasons, the species is classified as Near Threatened. However, it could decline rapidly if alien predators such as brown tree snake Boiga irregularis were introduced, and would then warrant uplisting to a higher threat category.
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.
Engbring, J.; Ramsey, F. L.; Wildman, V. J. 1990. Micronesian forest bird surveys, the Federated States: Pohnpei, Kosrae, Chuuk, and Yap. U.S. Fish and Wildlife Service, Honolulu.
Further web sources of information
Explore HBW Alive for further information on this species
Text account compilers
Derhé, M., Mahood, S., O'Brien, A., Shutes, S.
IUCN Red List evaluators
Butchart, S., Symes, A.
BirdLife International (2015) Species factsheet: Zosterops hypolais. Downloaded from http://www.birdlife.org on 01/03/2015. Recommended citation for factsheets for more than one species: BirdLife International (2015) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 01/03/2015.
This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
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|Current IUCN Red List category||Near Threatened|
|Species name author||Hartlaub & Finsch, 1872|
|Population size||mature individuals|
|Distribution size (breeding/resident)||100 km2|
|Links to further information|
|- Additional Information on this species|