Pied avocet 
(Cà kheo mỏ cong, Recurvirostra avosetta)

The pied avocet (Recurvirostra avosetta) is a species of wader in the Recurvirostridae family.
This bird species is found in the Palearctic.

Identification traits:
- Long, upturned bill, 
- Long legs

Charadrius, Charadriidae or Charadriiformes comes from the Ancient Greek kharadrios, meaning a bird found in river valleys or ravines ((kharadra) being ravine), and was later adopted into Late Latin. 

The name Recurvirostridae is derived from Latin, combining recurvus (bent back/curved) and rostrum (bill), referring to avocets' upturned bills.

The genus name comes from Latin recurvus, 'curved backwards' and rostrum, 'bill'.

The common name avocet is thought to derive from the Italian word avosetta, which may relate to Latin avis ("bird").