Recommended citation
BirdLife International (2024) Species factsheet: Sumatran Drongo Dicrurus sumatranus. Downloaded from
https://datazone.birdlife.org/species/factsheet/sumatran-drongo-dicrurus-sumatranus on 22/11/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 22/11/2024.