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Brown, L. H.; Urban, E. K.; Newman, K. 1982. The birds of Africa vol I. Academic Press, London. del Hoyo, J.; Elliot, A.; Sargatal, J. 1992. Handbook of the Birds of the World, vol. 1: Ostrich to Ducks. Lynx Edicions, Barcelona, Spain. Hancock, J. A.; Kushlan, J. A.; Kahl, M. P. 1992. Storks, ibises and spoonbills of the world. Academic Press, London. Hockey, P. A. R.; Dean, W. R. J.; Ryan, P. G. 2005. Roberts birds of southern Africa. Trustees of the John Voelcker Bird Book Fund, Cape Town, South Africa. IUCN. 2012. IUCN Red List of Threatened Species (ver. 2012.1). Available at: http://www.iucnredlist.org. (Accessed: 19 June 2012). Langrand, O. 1990. Guide to the birds of Madagascar. Yale University Press, New Haven, USA. Martin, A. P.; Randall, R. M. 1987. Numbers of waterbirds at a commercial saltpan and suggestions for management. South African Journal of Wildlife Research 17(3): 75-81. van Heerden, J. 1974. Botulism in the Orange Free State goldfields. Ostrich 45(3): 182-184. |
| Citation: | BirdLife International 2012. Threskiornis aethiopicus. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 20 May 2013. |
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