The Terek sandpiper is a small migratory Palearctic wader species and is the only member of the genus Xenus. It is named after the Terek River which flows into the west of the Caspian Sea, as it was first observed around this area.
Terek sandpiper Xenus cinereus, little stint Calidris minuta and marsh sandpiper Tringa stagnatilis in Krishna Wildlife Sanctuary, Andhra Pradesh, India.