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.
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
BirdLife International (2018) Species factsheet: Nannococcyx psix. Downloaded from http://www.birdlife.org on 15/12/2018. Recommended citation for factsheets for more than one species: BirdLife International (2018) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 15/12/2018.