- [Wiki]
http://en.wikipedia.org/wiki/Necrosyrtes_monachus.
- [arkive]
https://www.arkive.org/white-backed-vulture/necrosyrtes-monachus/.
- [EoL]
http://eol.org/pages/1048942/details.
- [Kooy2010]
Kooijman, S. (2010).
Dynamic Energy Budget theory for metabolic organisation.
Cambridge Univ. Press, Cambridge.
- [MundCook1975]
Mundy, P. J. and Cook, A. W. (1975).
Hatching and rearing of two chicks by the hooded vulture.
Ostrich, 46:45--50. doi:10.1080/00306525.1975.9639381.
- [PrinPres1991]
Prinzinger, R., A.Preßmar, and Schleucher, E. (1991).
Body temperature in birds.
Comp. Biochem. Physiol., 99A(4):499--506. doi:10.1016/0300-9629(91)90122-S.