Pied kingfisher 
(Bói cá nhỏ, Ceryle rudis)

The pied kingfisher (Ceryle rudis) is a species of water kingfisher widely distributed across Africa and Asia.

Alcedo, Alcedinidae: Latin word for kingfisher. 
The genus Ceryle which is from Greek kerulos bird mentioned by Aristotle,.. but not further identified but probably mythical and associated with the halcyon, a kingfisher.
The specific epithet rudis is Latin for "wild" or "rude".