This taxon is Not Recognised as a species by BirdLife International.
Napothera rabori (Sibley and Monroe 1990, 1993) has been moved into the new genus Robsonius and split into R. rabori and R. sorsogonensis following Collar (2006).
BirdLife International (2016) Species factsheet: Robsonius rabori. Downloaded from http://www.birdlife.org on 03/12/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 03/12/2016.