Common redshank or simply redshank (Choắt nâu, Tringa totanus) 

Common Redshank (Tringa totanus, Choắt nâu) is an Eurasian wader, Scholopacidae family, tringa genus. 

The bird is found across temperate Eurasia; wintering on coasts around the Mediterranean, on the Atlantic coast of Europe from Ireland and Great Britain southwards, and in South Asia.
The Common redshank is a winter pass-through bird, commonly sighted at the Xuan Thuy National Park.

The term Charadriiformes comes from New Latin, combining the Greek word kharadrios ("a bird of river valleys" or "a bird of ravines") and the Latin suffix -formes meaning "forms" or "shaped like". Therefore, Charadriiformes translates to "birds shaped like or resembling the charadrius," which is a type of plover or stone curlew historically found in dry river beds or ravines. 

The word Scolopacidae is New Latin, derived from the genus name Scolopax (Latin for "snipe" or "woodcock") and the common zoological suffix for family names, -idae.

The name Tringa is the Neo-Latin name given to the green sandpiper based on Ancient Greek trungas, a thrush-sized, white-rumped, tail-bobbing wading bird mentioned by Aristotle.

The specific totanus is from Totano, the Italian name for this bird.