[@article{RN440,
 author = {Benson, P C and Plug, I and Dobbs, J C},
 issn = {0030-6525},
 journal = {Ostrich},
 number = {3},
 pages = {118-132},
 title = {An analysis of bones and other materials collected by Cape Vultures at the Kransberg and Blouberg colonies, Limpopo Province, South Africa},
 volume = {75},
 year = {2004}
}
,@article{RN466,
 author = {Benson, P C and Tarboton, W R and Allan, D G and Dobbs, J C},
 issn = {0030-6525},
 journal = {Ostrich},
 number = {3-4},
 pages = {134-142},
 title = {The breeding status of the Cape Vulture in the Transvaal during 1980-1985},
 volume = {61},
 year = {1990}
}
,@inbook{RN852,
 address = {Johannesburg, South Africa},
 author = {Mundy, P J and Benson, P C and Allan, D G},
 booktitle = {The atlas of southern African birds Vol I: Non-passerines},
 editor = {Harrison, J A and Allan, D G and Underhill, L G and Herremans, M J L and Tree, A J and Parker, V and Brown, C J},
 pages = {158-159},
 publisher = {BirdLife South Africa},
 title = {Cape Vulture Gyps coprotheres},
 year = {1997}
}
,]