Family Sandpipers, Snipes, Phalaropes (Scolopacidae)

Endangered

Great Knot (Calidris tenuirostris)


Taxonomy

French: Bécasseau de l’Anadyr German: Großer Knutt Spanish: Correlimos grande
Taxonomy:

Totanus tenuirostris

Horsfield

, 1821,

Java

.

In the past, genus Calidris was on occasion reserved for present species and C. canutus only. Has perhaps hybridized with C. virgata#R. Monotypic.

Distribution:

NE Siberia from Verkhoyansk Mts E to Magadan, Koryak Highlands and S Chukotskiy Peninsula; distribution poorly known. Winters mainly in SE Asia and S to Australia; also in Arabia, Pakistan, NW, S & NE India and Bangladesh.

Descriptive notes

26–28 cm; 115–248 g; wingspan 56–66 cm. Largest Calidris, being 10–15% larger than C. canutus; breast and flanks heavily spotted... read more

Voice

Soft whistling song heard in breeding season, but not very well described in the literature. In non... read more

Habitat

Breeds in subarctic, on plateaux or gentle slopes with montane tundra at 300–1700 m (... read more

Food and feeding

During breeding season primarily plant material, mainly berries (e.g. Empetrum nigrum, Vaccinium uliginosum, Arctous... read more

Breeding

Lays late May to late Jun. Monogamous. Territorial; density 13 pairs on 9·5 km² of suitable habitat; highly faithful to site.... read more

Movements

Long-distance migrant, mainly along coast, probably with few stopovers; juveniles recorded moving c... read more

Status and conservation

ENDANGERED. Global population approximately 290,000–380,000 individuals and declining. At end of 20th century, Australian wintering population estimated at 270,000... read more

Recommended citation

Van Gils, J., Wiersma, P., Kirwan, G.M. & Sharpe, C.J. (2018). Great Knot (Calidris tenuirostris). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/53921 on 13 November 2018).