This taxon is Not Recognised as a species by BirdLife International.
Gallinula nesiotis and G. comeri (del Hoyo and Collar 2014) were previously lumped as G. nesiotis following Sibley and Monroe (1990, 1993) and Groenenburg et al. (2008, 2009), and before that had been treated as separate species by Collar and Stuart (1985).
BirdLife International (2016) Species factsheet: Gallinula nesiotis. Downloaded from http://www.birdlife.org on 04/12/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 04/12/2016.