Austen's brown hornbill 
(Niệc nâu, Anorrhinus austeni) 
Austen's brown hornbill is sometimes considered as a subspecies of Tickell's brown hornbill.

Austen's brown hornbill (Anorrhinus austeni) is a species of hornbill found in forests from northeastern India and south to Vietnam and northern Thailand.

Bucerotiformes, Bucerotidae, Buceros: Latin bucerus horned like an ox (Greek boukeros: horned like an ox: bous ox; keros: horn).
The name Anorrhinus comes from the Greek words ano (ἄνω), meaning "above," and rhis or rhinos (ῥίς/ῥινός), meaning "nose" or "nostril," referring to the genus's upward-oriented nostrils.