Vietnam Adventure Tours & Travel, Trekking, Cycling, Family Tours

The water kingfishers or Cerylinae are one of the three subfamilies of kingfishers, and are also known as the cerylid kingfishers.

1/ 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 water kingfishers or Cerylinae are one of the three subfamilies of kingfishers, and are also known as the cerylid kingfishers.

1/ Crested kingfisher (Bói cá mào or Bói cá lớn, Megaceryle lugubris) 

Alcedo, Alcedinidae: Latin word for kingfisher. 
Megaceryle is from the Ancient Greek megas, "great", and the existing 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.