Dwarf Ibis Bostrychia bocagei


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BirdLife International. 2008. Species Guardian Action Update: November 2008: Dwarf Olive Ibis Bostrichia bocagei, São Tomé Fiscal Lanius newtoni, São Tomé Grosbeak Neospiza concolor. Available at: #

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de Lima, R.F.; Sampaio, H.; Dunn, J.C.; Cabinda, G.; Fonseca, R.; Oquiongo, G.; Oquiongo, J.; Samba, S.; Santana, A.; Soares, E.; Viegas, L.; Ward-Francis, A.; Costa, L.T.; Palmeirim, J.; Buchanan, G. 2017. Distribution and habitat associations of the critically endangered bird species of São Tomé Island (Gulf of Guinea). Bird Conservation International 27(4): 455-469.

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Maia, H.; Gascoigne, A.; de Deus, D.; de Lima, R. F. 2014. Notes on the breeding ecology and conservation of the Critically Endangered Dwarf Olive Ibis Bostrychia bocagei. Bull. Afr. Bird Club 21(2): 202-205.

Ndang’ang’a, P.K., Ward-Francis, A., Costa, L., de Lima, R.F., Palmeirim, J., Tavares, J., Buchanan, G., Carvalho, M., Melo, M., Dallimer, M. and Valle, S. 2014. ) International action plan for the conservation of critically endangered birds on São Tomé: 2014-2018. BirdLife International, Cambridge, UK.

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Sampaio, H. A. L., de Lima, R. F., Ward-Francis, A. and Havery, S. J. 2016. Hunters and the critically endangered dwarf olive ibis, endemic to São Tomé. Unpublished report. BirdLife International, Cambridge, UK.

Soares, F.C, Panisi, M., Sampaio, H., Soares, E., Santana, A., Buchanan, G.M., Leal, A.I., Palmeirim, J.M. & de Lima, R.F. 2020. Land-use intensification promotes non-native species in a tropical island bird assemblage. Animal Conservation 23(5): 571-584.

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Ward-Francis, A.; Costa, L.; Sampaio, H.; de Lima, R.F. 2015. Reducing the extinction risk of the three Critically Endangered birds of São Tomé. Interim Report AFR-1411 - F14AP00529. Royal Society for the Protection of Birds, Sociedade Portuguesa para o Estudo das Aves, University of Lisbon.

Further resources

IUCN SSC Stork, Ibis and Spoonbill Specialist Group

Search for photos and videos, and hear sounds of this species from the Macaulay Library

Species Guardian Action Update

This species has been identified as an Alliance for Zero Extinction (AZE) trigger - click here for more information

Recommended citation
BirdLife International (2022) Species factsheet: Bostrychia bocagei. Downloaded from on 26/09/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from on 26/09/2022.