This taxon is Not Recognised as a species by BirdLife International.
Anas poecilorhyncha (Sibley and Monroe 1990, 1993) has been split into A. poecilorhyncha and A. zonorhyncha following Leader et al. (2006), who presented evidence of sympatric breeding; this treatment is also accepted by AOU.
BirdLife International (2016) Species factsheet: Anas poecilorhyncha. 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.