St Helena Cuckoo Nannococcyx psix


Justification of Red List Category
This species was formerly found on St Helena. It is now Extinct, presumably as a result of island deforestation in the 18th century.

Population justification
None remain.

Distribution and population

Nannococcyx psix was described from St Helena (to UK) from a single fragment of a humerus. It is likely to have become extinct in the 18th century (Olson 1975b).


It was presumably a small forest cuckoo, which would account for its scarcity in the fossil record.


Its extinction is likely to have occurred as a result of the deforestation of the island.


Text account compilers
Brooks, T., Khwaja, N., Mahood, S., Martin, R

Recommended citation
BirdLife International (2019) Species factsheet: Nannococcyx psix. Downloaded from http://www.birdlife.org on 18/06/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 18/06/2019.