São Tomé ibis (English Wikipedia)

African Bird Club.; Club, African Bird (2014). Bulletin of the African Bird Club. Vol. 21. Cambridge: African Bird Club.
Wilson Ornithological Society; Society, Wilson Ornithological (2007). The Wilson journal of ornithology. Vol. 119. Lawrence, KS: Wilson Ornithological Society.
Maia, Hugulay; Gascoigne, Angus; De Deus, Domingos; De Lima, Ricardo F. (September 2014). "Notes on the breeding ecology and conservation of the Critically Endangered Dwarf Olive Ibis". Bulletin of the African Bird Club. 21 (2): 202––205. doi:10.5962/p.310049. ISSN 1352-481X.

doi.org

BirdLife International (2018). "Bostrychia bocagei". IUCN Red List of Threatened Species. 2018: e.T22697478A131389052. doi:10.2305/IUCN.UK.2018-2.RLTS.T22697478A131389052.en. Retrieved 19 November 2021.
Muñoz-Torrent, Xavier; da Trindade, Ngouabi Tiny; Mikulane, Signe (2022), "Territory, Economy, and Demographic Growth in São Tomé and Príncipe: Anthropogenic Changes in Environment", Biodiversity of the Gulf of Guinea Oceanic Islands, Cham: Springer International Publishing, doi:10.1007/978-3-031-06153-0_4, ISBN 978-3-031-06152-3, retrieved 2022-11-29
DE LIMA, RICARDO F.; SAMPAIO, HUGO; DUNN, JONATHON C.; CABINDA, GABRIEL; FONSECA, RICARDO; OQUIONGO, GABRIEL; OQUIONGO, JOEL; SAMBA, SEDNEY; SANTANA, ARISTIDES; SOARES, ESTEVÃO; VIEGAS, LEONEL; WARD-FRANCIS, ALICE; COSTA, LUÃS T.; PALMEIRIM, JORGE M.; BUCHANAN, GRAEME M. (December 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. doi:10.1017/S0959270916000241. S2CID 89070972. ProQuest 1970187959.
Maia, Hugulay; Gascoigne, Angus; De Deus, Domingos; De Lima, Ricardo F. (September 2014). "Notes on the breeding ecology and conservation of the Critically Endangered Dwarf Olive Ibis". Bulletin of the African Bird Club. 21 (2): 202––205. doi:10.5962/p.310049. ISSN 1352-481X.

Muñoz-Torrent, Xavier; da Trindade, Ngouabi Tiny; Mikulane, Signe (2022), "Territory, Economy, and Demographic Growth in São Tomé and Príncipe: Anthropogenic Changes in Environment", Biodiversity of the Gulf of Guinea Oceanic Islands, Cham: Springer International Publishing, doi:10.1007/978-3-031-06153-0_4, ISBN 978-3-031-06152-3, retrieved 2022-11-29

DE LIMA, RICARDO F.; SAMPAIO, HUGO; DUNN, JONATHON C.; CABINDA, GABRIEL; FONSECA, RICARDO; OQUIONGO, GABRIEL; OQUIONGO, JOEL; SAMBA, SEDNEY; SANTANA, ARISTIDES; SOARES, ESTEVÃO; VIEGAS, LEONEL; WARD-FRANCIS, ALICE; COSTA, LUÃS T.; PALMEIRIM, JORGE M.; BUCHANAN, GRAEME M. (December 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. doi:10.1017/S0959270916000241. S2CID 89070972. ProQuest 1970187959.

DE LIMA, RICARDO F.; SAMPAIO, HUGO; DUNN, JONATHON C.; CABINDA, GABRIEL; FONSECA, RICARDO; OQUIONGO, GABRIEL; OQUIONGO, JOEL; SAMBA, SEDNEY; SANTANA, ARISTIDES; SOARES, ESTEVÃO; VIEGAS, LEONEL; WARD-FRANCIS, ALICE; COSTA, LUÃS T.; PALMEIRIM, JORGE M.; BUCHANAN, GRAEME M. (December 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. doi:10.1017/S0959270916000241. S2CID 89070972. ProQuest 1970187959.

Maia, Hugulay; Gascoigne, Angus; De Deus, Domingos; De Lima, Ricardo F. (September 2014). "Notes on the breeding ecology and conservation of the Critically Endangered Dwarf Olive Ibis". Bulletin of the African Bird Club. 21 (2): 202––205. doi:10.5962/p.310049. ISSN 1352-481X.