Home Log Out
Birdpedia - Germany         | Home | Birds | Calendar | Reserves | Field Trips | Sightings | Reports | Contacts | [HBW - BirdLife (v3)] 08/05/2024 01:14:49 PM
Species Database
Find
Quick Links
News
 
Species Details [Taxonomy: HBW - BirdLife (v3)] Print... Email... 

 EN    Great Knot* Id (Atlas):
    Calidris tenuirostris Vagrant

Description (10)
Image of Great Knot
  Medium large. Medium long very slightly decurved bill, short legs. Wings project beyond tail tip while standing. Bill slightly longer than head. Sexes alike.

Adults: Breeding: Back, scapulars, blackish, edged white with a few scattered chestnut feathers. Whole of head and neck, finely streaked black and white. Eye, dark brown. Rump, mottled white and dark brow, but appearing white at a distance. Coverts, grey with dark shafts, tipped white, greater and primary coverts broadly tipped white forming a narrow but conspicuous white wing bar. Flight feathers, blackish. Throat, white and finely streaked with black. Breast, flanks, upper belly, undertail coverts, white with large black spots, which are concentrated on the breast forming a dark breast band. Center of belly, white. Underwing, mostly white. Bill, black, greenish at base. Legs, dark greenish-grey. Non-breeding: Upperparts, paler brownish-grey with less streaking on head, and no chestnut feathers. Primary coverts, darker than rest of wing. Underparts, lightly streaked on breast and flanks, with few dark spots on breast. Undertail coverts, white.

Immatures: Browner above. Breast, brownish-buff streaked with dark brown.


Other Names (World)
Great Knot, Greater Knot, Japanese Knot, Stripe-crowned Knot, Slender-billed Knot, Eastern Knot, Large Sandpiper, Great Sandpiper

Family
Scolopacidae (Sandpipers, Snipes, Phalaropes)

Size
26 - 28 cm

First Described (Guide)
(Horsfield, 1821)

Derivation
Cal-id'-ris - Gk, (or scalidris), a kind of bird: ten-u-i-ros'-tris - L., tenuis, slender; L., rostrum, bill

Habitat
Estuaries and tidal mudflats, occasionally inland.

Range (Guide)
Australia, Bangladesh, Brunei Darussalam, China (mainland) (NB), Guam (NB), Hong Kong (China), India, Indonesia, Iran [Islamic Republic of] (NB), Japan, Malaysia, Micronesia [Federated States of] (NB), Myanmar, North Korea, Northern Mariana Islands (NB), Oman (NB), Pakistan, Palau (NB), Papua New Guinea, Philippines, Russia (Asian), Saudi Arabia (P), Singapore, South Korea, Sri Lanka, Taiwan (China), Thailand, Timor-Leste (NB) (P), United Arab Emirates (NB), Vietnam.

Vagrant to Bahrain, Denmark, Djibouti, Germany, Ireland, Israel, Mauritius, Morocco, Netherlands Antilles, New Caledonia, New Zealand, Norway, Seychelles, Spain, United Kingdom, USA, Yemen.

North-eastern Siberia, from Verkhoyansk Mts east to Magadan, Koryak Highlands and southern Chukotskiy Peninsula; distribution poorly known. Winters mainly in south-eastern Asia and Australia; also in Arabia, Pakistan, north-western & north-eastern India and Bangladesh.
 
Population
Estimated population is 290,000 (2010) and decreasing.

Status EN
Degradation and loss of wetland habitats through environmental pollution, reduced river flows and human disturbance are the main threats.

For more information see BirdLife International Species Factsheet.

Habits
Usually in small groups, often associated with godwits.

Food
Mainly bivalve molluscs, gastropods, polychaete worms, crabs, shrimps and sea-cucumbers. Also seeds, berries and insects during the breeding season.

Voice
Usually silent. Also a double whistle and calls that resemble the Red Knot (Calidris canutus).



Xeno-Canto Sound Files (more (2)...)

 
Great Knot (Calidris tenuirostris) [XC396375]
     by id from Trevozhnaya, Golden Ridge, Anadyrsky District, Chukotka Autonomous Okrug, Russian Federation (alarm call)

 
Great Knot (Calidris tenuirostris) [XC118149]
     by Christian A. Jensen from Barr al Hikman, Oman, Oman (flight call)

Nest
A slight depression in reindeer moss.

Eggs (Guide)
Usually 4; grey-yellow liberally speckled with red-brown markings; ellipsoidal; about 51 x 37 mm.

Subspecies
No subspecies.

Similar Species
Red Knot (Calidris canutus)
Smaller. Non-breeding with non-breeding. Bill, shorter. Eyestripe, darker and more distinct. Eyebrow, white and longer, from base of bill to behind eye. Lacks a white rump.

Compare Images


References
See References.

The Field Guide to the Birds of Australia Pizzey, G., and Knight, E., 1997, Angus & Robertson, Sydney ISBN 0 207 19691 5
Field Guide to Australian Birds Morecombe, M., 2000, Steve Parish Publishing Pty Ltd. ISBN 1 876282 10 X
Field Guide to the Birds of Australia Simpson, K., and Day, N., 1999, 6th Edition, Viking ISBN 0 670 87918 5
Reader's Digest Complete Book of Australian Birds 1988, 2nd Edition, Reader's Digest ISBN 0 949819 99 9
What Bird is That? 1984, Revised Edition, Angus & Robertson, Sydney ISBN 0 207 14846 5
Handbook of Australian, New Zealand & Antarctic Birds 1990 - , Oxford University Press, Melbourne ISBN 0 19 553244 9


Files:
JPG files for Great Knot (Calidris tenuirostris) - 10 filesMP3 files for Great Knot (Calidris tenuirostris) - 1 files


More Information

BirdLife International

For more information about the Great Knot see... Show Articles BirdLife International Species Factsheet.


Articles about the Great Knot

If you would like to read any articles about the Great Knot... Show Articles Show Articles (0)


No Pictures of Great Knot

If Birdpedia has no pictures of Great Knot or you would like to see more, then try the following...

      Show External Images from BING From BING (10)


No Videos of Great Knot

If Birdpedia has no videos of Great Knot or you would like to see more, then try the following..

      Show External Videos From BING (0)


Where can I observe this species?
Select an area (or leave blank) to see locations where this species has been recorded.

Area
  All   

Optional: Complete the following if you wish to restrict the reserve to within a given distance of a location.

Please enter the Latitude and Longitiude of a given location together with the maximum distance (km) to display a list of reserves within that distance. You must enter a Latitude, a Longitude and a distance greater than 0.
 
Latitude: (Decimal degrees takes precedence)
Deg Min Sec     Decimal degrees (Include compass setting or value)
         or   GPS help
Longitude: (Decimal degrees takes precedence)
Deg Min Sec     Decimal degrees (Include compass setting or value)
         or   Find GPS using Google Maps
Distance Bearing  
Get Sample GPS readings


On What Field Trips was this species observed?
Select an area (or leave blank), and a date range, to see field trips on which this species has been recorded.

Area
  All   

From To  
 

Optional: Complete the following if you wish to restrict the reserve to within a given distance of a location.

Please enter the Latitude and Longitiude of a given location together with the maximum distance (km) to display a list of reserves within that distance. You must enter a Latitude, a Longitude and a distance greater than 0.
 
Latitude: (Decimal degrees takes precedence)
Deg Min Sec     Decimal degrees (Include compass setting or value)
         or   GPS help
Longitude: (Decimal degrees takes precedence)
Deg Min Sec     Decimal degrees (Include compass setting or value)
         or
Distance Bearing  
Get Sample GPS readings


Latest Sightings for Great Knot
Select the Area to restrict the Sightings.

Area
  All