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Himantopus is a bird genus commonly known as stilt in the family Recurvirostridae.
The generic name Himantopus comes from the Ancient Greek meaning "strap-leg".

1/ Black-winged stilt (Cà kheo, Himantopus himantopus)

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

1/ Pied avocet (Cà kheo mỏ cong, Recurvirostra avosetta)

The Recurvirostridae are a family of birds in the wader suborder Charadrii in the bird order Charadriiformes. 
It contains two distinct groups of birds, the avocets (one genus) and the stilts (two genera).