This taxon is Not Recognised as a species by BirdLife International.
Lophura edwardsi (del Hoyo and Collar 2014) was previously split as L. edwardsi and L. hatinhensis following Sibley and Monroe (1990, 1993). Lophura imperialis (Sibley and Monroe 1990, 1993) is considered a hybrid between Silver Pheasant Lophura nycthemera and Edwards's Pheasant L. edwardsi following Rasmussen (1998), Garson (2001) and BirdLife International (2001).
BirdLife International (2016) Species factsheet: Lophura edwardsi. 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.