Brown fish owl 
(Dù dì phương đông, Ketupa zeylonensis) 

The brown fish owl (Ketupa zeylonensis) is a fish owl species in the family known as typical owls, Strigidae.

Strigidae: derived from "Strix", a Latin word for owl (also the same in Greek).
Ketupa: From specific name Strix ketupu.
zeylanica, zeylanicus, zeylonense, zeylonensis, zeylonica, zeylonicum, zeylonicus, zeylonus: Ceylon (= Sri Lanka).