Great Knot (Calidris tenuirostris)
All species
EN· Endangered
Scolopacidae· Charadriiformes

Great Knot

Calidris tenuirostris

A large, stocky shorebird that breeds in north-eastern Siberia and winters on tropical and subtropical mudflats. Rapid loss of staging habitat in the Yellow Sea has driven severe population declines.

Russia Bangladesh India China

About this species

The Great Knot (Calidris tenuirostris) is among the largest calidrid sandpipers, with heavily spotted breeding plumage and a distinctively stout bill. It breeds in alpine tundra and sparse larch forests of north-eastern Siberia. On migration, the species is critically dependent on rich intertidal mudflats along the East Asian–Australasian Flyway and, to a lesser extent, across South Asia along the Central Asian Flyway. Loss and degradation of intertidal staging areas — particularly in the Yellow Sea, where vast areas of mudflat have been reclaimed — has driven steep population declines. The species was uplisted to Endangered in 2016.