Ua Pou in the Marquesas Islands (French Polynesia).
 
Status PE
The last record was in March 1985. It has not been seen since and is considered extinct. Extinction presumably due to habitat destruction by grazing, clearing and fire and also predation by introduced rats.
For more information see BirdLife International Species Factsheet.
Subspecies
No subspecies.
Pomarea mendozae (Sibley and Monroe 1990, 1993) has been split into Marquesan Monarch (Pomarea mendozae), Ua Pou Monarch (Pomarea mira) and Nuku Hiva Monarch (Pomarea nukuhivae) following Cibois et al. (2004).
Considered by some authors to be a subspecies of Marquesan Monarch (Pomarea mendozae).