Bird, J.P., Martin, R., Akçakaya, H.R., Gilroy, J., Burfield, I.J., Garnett, S.G., Symes, A., Taylor, J., Şekercioğlu, Ç.H. and Butchart, S.H.M. 2020. Generation lengths of the world’s birds and their implications for extinction risk. Conservation Biology 34(5): 1252-1261.
del Hoyo, J.; Elliott, A.; Sargatal, J. 2001. Handbook of the Birds of the World, vol. 6: Mousebirds to Hornbills. Lynx Edicions, Barcelona, Spain.
Gonzalez, J.C.T. 2011. Enumerating the Ethno-ornithological importance of Philippine hornbills. The Raffles Bulletin of Zoology 24: 149-161.
IUCN. 2020. The IUCN Red List of Threatened Species. Version 2020-3. Available at: https://www.iucnredlist.org. (Accessed: 10 December 2020).
Mamangun, A. & Gonzalez, J.C.T. 2009. Density and feeding preference of the Polillo Tarictic Hornbill Penelopides manillae subnigra in fragmented forests of Polillo Island. Banwa: The Multidisciplinary Journal of UP Mindanao 4(1): 69-82.
Poonswad, P., Kemp, A.C. & Strange, M. 2013. Hornbills of the World: A Photographic Guide. Draco Publishing and Hornbill Research Foundation.
IUCN SSC Hornbill Specialist Group
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Recommended citation
BirdLife International (2024) Species factsheet: Luzon Hornbill Penelopides manillae. Downloaded from
https://datazone.birdlife.org/species/factsheet/luzon-hornbill-penelopides-manillae 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.