(syn. Bubo Ϯ Great Horned Owl B. virginianus) Gr. ἡλιας hēlias  of the sun  < ἡλιος hēlios  sun; πτηξις ptēxis, πτηξεως ptēxeōs  terror  < πτησσω ptēssō  to scare; "Heliaptex, Sw.  Habits diurnal. Head small. Facial disc almost obsolete. Ears very small. Tail moderate. Feet feathered to the toes.  H. arcticus, N. Z. pl. 32" (Swainson 1837).

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 19 January 2019).