Eastern cattle egret (Cò ruồi, Bubulcus coromandus)
The epithet coromanda refers to the Coromandel Coast of India.

The eastern cattle egret (Ardea coromanda) is a species of heron (family Ardeidae) found in the tropics, subtropics and warm temperate zones. 

Ardeidae, Ardea: the Latin word ardea meaning "heron".
The genus name Bubulcus is Latin for herdsman, referring to this species' association with cattle. 
"Coromandus" is a Latinized name derived from the geographical name for the Coromandel Coast in southeastern India.