Bird, J.P., Martin, R., Akçakaya, H.R., Gilroy, J., Burfield, I.J., Garnett, S.G., Symes, A., Taylor, J., ?ekercio?lu, Ç.H. and Butchart, S.H.M. 2020. Generation lengths of the world’s birds and their implications for extinction risk. Conservation Biology 34: 1252-1261. DOI: 10.1111/cobi.13486.
del Hoyo, J., Elliott, A. and Sargatal, J. 2001. Handbook of the Birds of the World, vol. 6: Mousebirds to Hornbills. Lynx Edicions, Barcelona, Spain.
Donald, P.F., Fernando, E., Brown, L., Busana, M., Butchart, S.H.M., Chng, S., Colina, A.d.l., Ferreira, J.M., Jain, A., Jones, V.R., Lapido, R., Malsch, K., McDougall, A., Muccio, C., Nguyen, D., Outhwaite, W., Petrovan, S.O., Stafford, C., Sutherland, W.J., Tallowin, O. & Safford, R. 2024 (in press). Assessing the global prevalence of wild birds in trade.
IUCN. 2024. The IUCN Red List of Threatened Species. Version 2024-2. Available at: https://www.iucnredlist.org. (Accessed: 22 October 2024).
IUCN SSC Hornbill Specialist Group
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Recommended citation
BirdLife International (2024) Species factsheet: Southern Yellow-billed Hornbill Tockus leucomelas. Downloaded from
https://datazone.birdlife.org/species/factsheet/southern-yellow-billed-hornbill-tockus-leucomelas on 27/12/2024.
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 27/12/2024.