(syn. Butastur Ϯ White-eyed Buzzard B. teesa) Gr. πολια polia  grey-haired; ορνις ornis, ορνιθος ornithos  bird; "3. Geschlecht. Sperberadler, Circaëtus), Kaup.  ...  5) Bussardsperberadler, Poliornis, Kaup (teesa, liventer, poliogenys)" (Kaup 1844).  Var. Polyornis.

Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2019). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2019). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from www.hbw.com on 23 January 2019).