This taxon is Not Recognised as a species by BirdLife International.
Thalurania colombica (del Hoyo and Collar 2014) was previously split as T. colombica and T. fannyi following Sibley and Monroe (1990, 1993), and subsequently T. ridgwayi was recognised following AOU (1998).
BirdLife International (2016) Species factsheet: Thalurania fannyi. Downloaded from http://www.birdlife.org on 06/12/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 06/12/2016.