Recommended citation
BirdLife International (2024) Species factsheet: Red-knobbed Imperial-pigeon Ducula rubricera. Downloaded from
https://datazone.birdlife.org/species/factsheet/red-knobbed-imperial-pigeon-ducula-rubricera on 23/12/2024.
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 23/12/2024.