Attributes / relations provided by
♦ ¹Dama dama, George A. Feldhamer, Kelly C. Farris-Renner, and Celeste M. Barker, MAMMALIAN SPECIES No. 317, pp. 1-8 (1988)
♦ 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.