Justification of Red List Category
This species was known from Hawaii's Big Island, USA, but it has not been reported since 1940 and is now Extinct. Deforestation and introduced diseases are likely to have been responsible.
Akialoa obscura was endemic to Hawai`i, USA. It was apparently not uncommon until 1895, but declined rapidly, with the last report being in 1940 (Greenway 1967).
It inhabited mountain koa-`ohi`a forest (500-2,000 m).
Its extinction was probably because of deforestation and introduced disease-carrying mosquitoes which are prevalent in the lowlands (Collar et al. 1994).
Text account compilers
Brooks, T., Khwaja, N., Mahood, S., Martin, R
BirdLife International (2019) Species factsheet: Akialoa obscura. Downloaded from http://www.birdlife.org on 22/01/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 22/01/2019.