Recommended citation
BirdLife International (2023) Species factsheet: Otus sulaensis. Downloaded from
http://datazone.birdlife.org/species/factsheet/sula-scops-owl-otus-sulaensis on 08/12/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://datazone.birdlife.org on 08/12/2023.