Authenticated (11/03/08) by Mark D. Anderson, Specialist Nature Conservation Scientist (Ornithologist), Department of Tourism, Environment and Conservation, Northern Cape, South Africa.
Glossary
Subspecies: a population usually restricted to a geographical area that differs from other populations of the same species, but not to the extent of being classified as a separate species.
Hockey, P.A.R., Dean, W.R.J. and Ryan, P.G. (2005) Roberts Birds of Southern Africa. 7th Edition.The Trustees of the John Voelcker Bird Book Fund, Cape Town.
Shimelis, A., Sande, E., Evans, S. and Mundy, P. (2005) International Species Action Plan for the Lappet-faced Vulture, Torgos tracheliotus.BirdLife International, Royal Society for the Protection of Birds, Nairobi, Kenya, UK.