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

The black-necked stork (Ephippiorhynchus asiaticus) is a tall long-necked wading bird in the stork family Ciconiidae.
The bird is a resident species across the Indian subcontinent and Southeast Asia.

Ciconiiformes, Ciconiidae: from Latin ciconia for stork.

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).

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).