This taxon is Not Recognised as a species by BirdLife International.
Oxypogon guerinii, O. cyanolaemus, O. lindenii and O. stuebelii (del Hoyo and Collar 2014) were previously lumped as O. guerinii following Sibley and Monroe (1990, 1993).
BirdLife International (2016) Species factsheet: Oxypogon guerinii. 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.