This taxon is Not Recognised as a species by BirdLife International.
Cuculus saturatus (del Hoyo and Collar 2014) was previously split as C. saturatus and C. optatus following Payne (2005). Prior to that, C. lepidus (Payne 2005, del Hoyo and Collar 2014), C. saturatus and C. optatus had been lumped as C. saturatus following Sibley and Monroe (1990, 1993).
BirdLife International (2023) Species factsheet: Cuculus saturatus. Downloaded from http://www.birdlife.org on 29/01/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 29/01/2023.