Great Knot

Calidris tenuirostris

Order

CHARADRIIFORMES

Family

Sandpipers, Phalaropes (Scolopacidae)

Code 4

GRKN

Code 6

CALTEN

ITIS

Egg Color:

Gray yellow with flecks of brown red



Number of Eggs:

4



Incubation Days:

21



Egg Incubator:

Both sexes



Nest Location:

On ground on tundra, often among rocks.



Nest Material:

Bits of vegetation.



Migration:

Migratory



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General

Great Knot: Medium-sized sandpiper with brown upperparts showing dark spots on crown and back, and white underparts with black spots on breast and sides. Wings show bright patch of orange-brown on coverts. Sexes are similar. Winter adult appears more gray, but remains heavily patterned. Juvenile has darker upperparts and paler spots on underparts.

Range and Habitat

Great Knot: This species breeds in the subarctic and montane tundra habitats of northeastern Siberia. It is migratory and winters along the coast of Southeast Asia and Australia. It has very rarely observed on west coast of Alaska during its spring migration, and has also been recorded locally in Western Europe.

Breeding and Nesting

Great Knot: Breeds on subarctic or montane tundra, often among rocks and low ground vegetation. Lay four gray yellow eggs with red brown flecks that both parents incubate for 21 days. After eggs hatch, female leaves chicks in care of male. Young birds make first flight when 20 to 25 days.

Foraging and Feeding

Great Knot: Feeds by probing in mud and sand along shorelines and mudflats. Often mixes with other shorebirds. Feeds on insects in breeding season and bivalves during winter.

Vocalization

Great Knot: Low, two-syllabled "nyut nyut."

Similar Species

Great Knot: Red Knot smaller, with shorter bill, lacks strong black spotting. Surfbird has much shorter, orange-based bill and orange legs.

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UnderpartsX

Belly, undertail coverts, chest, flanks, and foreneck.

UpperpartsX
Back, rump, hindneck, wings, and crown.
BreastX
The upper front part of a bird.
CrownX
The crown is the top part of the birds head.
Parts of a Standing bird X
Head Feathers and Markings X
Parts of a Flying bird X