This taxon is Not Recognised as a species by BirdLife International.
Christidis, L.; Boles, W. E. 2008. Systematics and taxonomy of Australian birds. CSIRO Publishing, Collingwood, Australia.
Payne, R. B. 2005. The cuckoos. Oxford University Press, Oxford, U.K.
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 (2015) Species factsheet: Cuculus optatus. Downloaded from http://www.birdlife.org on 07/10/2015. Recommended citation for factsheets for more than one species: BirdLife International (2015) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 07/10/2015.
This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
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Additional resources for this species
|Current IUCN Red List category||Not Recognised|
|Species name author||Gould, 1845|