Gray-faced Buzzard
(Diều Ấn độ, Butastur indicus)

The grey-faced buzzard (Butastur indicus) is an Asian bird of prey of the family Accipitridae.
The bird breeds in Manchuria, Korea and Japan; winters in South-east Asia.

Accipitridae from Latin accipiter/accipitri- "hawk".
accipitrinus Latin accipitrinus hawk-like (accipiter: hawk).
The genus name Butastur is a combination of the Latin words buteo (meaning "buzzard") and astur (meaning "a hawk"), referring to a genus of birds that share characteristics of both. The name was created by combining the existing genera Buteo and Astur to describe a type of hawk or buzzard.
indicus is Latin for Indian.