Attributes / relations provided by
♦ 1Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014).
Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
♦ 2del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.).
Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ 3Food Choice of White-headed Langurs
in Fusui, China; Zhaoyuan Li, Yi Wei, and Elizabeth Rogers; International Journal of Primatology,Vol. 24,No. 6, December 2003; p. 1189-1205