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Garbett, R.; Herremans, M.; Maude, G.; Reading, R.P. and Amar, A. 2018. Raptor population trends in northern Botswana: A re-survey of road transects after 20 years. Biological Conservation 224: 87-99.
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Kemp, M.I. and Kemp, A.C. 1977. Bucorvus and Sagittarius<.i>: two modes of terrestrial predation. In: Kemp, A.C (ed.), Proceedings of the Symposium on African Predatory Birds, Transvaal Museum, Pretoria, 29 August - 1 September 1977, pp. 13-16. Nothern Transvaal Ornithological Society, Pretoria.
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Recommended citation
BirdLife International (2024) Species factsheet: Secretarybird Sagittarius serpentarius. Downloaded from
https://datazone.birdlife.org/species/factsheet/secretarybird-sagittarius-serpentarius 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.