Oroanassa is a genus of Old World night herons typically found near water in forested regions.
The species of this genus was once placed in the genus Gorsachius.

1/White-eared night heron (Vạc hoa, Oroanassa magnifica)
(formerly Gorsachius magnificus)
other scientific names: Nycticorax magnificus

Ardeidae, Ardea: the Latin word ardea meaning "heron".
Oroanassa: Greek oros mountain; anassa queen, lady.
magnifica Latin magnificus splendid, grand (magnus great; facere to make).