The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.

References

  • 1. IUCN Red List (December, 2007) http://www.iucnredlist.orghttp://www.iucnredlist.org External link.
  • 2. del Hoyo, J., Elliott, A. and Sargatal, J. (1994) Handbook of the Birds of the World. Vol. 2: New World Vultures to Guineafowl. Lynx Edicions, Barcelona.
  • 2011. Zoonomen - Zoological Nomenclature Resource, 2011.02.25
  • 2011. IOC World Bird List, Master List v2.9
  • 3. CITES (December, 2007) http://www.cites.orghttp://www.cites.org External link.
  • 4. Alden, P.C., Estes, R.D., Schlitter, D. and McBride, B. (1996) Collins Guide to African Wildlife. HarperCollins Publishers, London.
  • 5. Britton, P.L. (1980) Birds of East Africa: their Habitat, Status and Distribution. East Africa National History Society, Nairobi.
  • 6. Burnie, D. (2001) Animal. Dorling Kindersley, London.
  • 7. BirdLife International (December, 2007) http://www.birdlife.org/datazone/species/index.html?action=SpcHTMDetails.asp&sid=3373&m=0http://www.birdlife.org/datazone/species/index.html?action=SpcHTMDetails.asp&sid=3373&m=0 External link.
  • 8. Anderson, M. (2008) Pers. Comm.
  • 9. UNEP-WCMC: Serengeti National Park, Tanzania (December, 2007) http://www.unep-wcmc.org/sites/wh/pdf/Serengeti.pdfhttp://www.unep-wcmc.org/sites/wh/pdf/Serengeti.pdf External link.
  • BirdLife International 2012. Gyps africanus
  • BirdLife_International (2011). IUCN Red List for birds. http://www.birdlife.org.
  • Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2014. The eBird/Clements checklist of birds of the world: Version 6.9. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  • Flower (1938) Furter notes on the duration of life in animals. IV. Birds. Proc Zool Soc London, Ser. A:195–235.
  • Gill, Frank, and Minturn Wright. 2006. Birds of the World: Recommended English Names
  • Gill, Frank, and Minturn Wright. 2006. Birds of the World: Recommended English Names. ix + 259
  • Lack, P. (2010). The African Bird Club checklist of African birds: Non-Passerines.
  • Orrell T. (custodian) (2013). ITIS Global: The Integrated Taxonomic Information System (version Sept 12). In: Species 2000 & ITIS Catalogue of Life, 11th March 2013 (Roskov Y., Kunze T., Paglinawan L., Orrell T., Nicolson D., Culham A., Bailly N., Kirk P., Bourgoin T., Baillargeon G., Hernandez F., De Wever A., eds). Digital resource at www.catalogueoflife.org/col/. Species 2000: Reading, UK.

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