Nannococcyx psix Olson, 1975

St. Helena cuckoo



Taxonomy & Nomenclature



Conservation Status


Last record: Holocene (presumed to have survived until 1700's)

IUCN RedList status: Extinct



St. Helena


Biology & Ecology










Original scientific description:

Olson, Storrs L. (1975). Paleornithology of St Helena Island, South Atlantic Ocean. Smithson. Contrib. Paleobiol. 23: 1-49.


Other references:

BirdLife International. (2012). Nannococcyx psix. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.1. ( Downloaded on 25 August 2013.

BirdLife International. (2016). Nannococcyx psix. The IUCN Red List of Threatened Species 2016: e.T22728841A94998433. Accessed on 30 June 2022.

Brooks, T. 2000. Extinct species. In: BirdLife International (ed.), Threatened Birds of the World, pp. 701-708. Lynx Edicions and BirdLife International, Barcelona and Cambridge, U.K.

del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.

Tyrberg, Tommy. (2009). Holocene avian extinctions, pp. 63-106. In: Turvey, Samuel T. (ed.). Holocene Extinctions. Oxford, UK & New York, USA: Oxford University Press. xii + 352 pp. 


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