Curlew sandpiper (Rẽ bụng nâu, Calidris ferruginea)

The curlew sandpiper (Calidris ferruginea) is a small wader of Scolopacidae family, Calidris genus; the bird breeds on the tundra of Arctic Siberia.

This bird species is strongly migratory, wintering mainly in Africa, but also in south and southeast Asia and in Australia and New Zealand.
Curlew sandpiper is a pass-through winter bird, commonly sighted at the Xuan Thuy National Park.

Charadriidae, Charadrius: Late Latin word for a yellowish bird mentioned in the fourth-century Vulgate; from Ancient Greek kharadrios a bird found in ravines and river valleys (kharadra, "ravine").

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 genus name Calidris is from Ancient Greek kalidris or skalidris, a term used by Aristotle for some grey-coloured waterside birds.

The specific ferruginea is from Latin ferrugo, ferruginis, "iron rust" referring to its colour in breeding plumage.