This taxon is Not Recognised as a species by BirdLife International.
Phalacrocorax atriceps and P. verrucosus (del Hoyo and Collar 2014) were previously lumped asP. atriceps following Turbott (1990).
BirdLife International (2016) Species factsheet: Phalacrocorax atriceps. 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.