Ephippiorhynchus is a small genus of storks. 

1/ Black-necked stork (Cò Á Châu, Ephippiorhynchus asiaticus) 

Ciconiiformes, Ciconiidae: from Latin ciconia for stork.
The genus name means thin (lepto) feather (ptilos). 
The genus name Ephippiorhynchus is derived from Ancient Greek ephippos, a saddle (literally something a horse back"), and rhynchus, "bill" (refering to the frontal shield).