Sharp-tailed Sandpiper

Calidris acuminata

Order

CHARADRIIFORMES

Family

Sandpipers, Phalaropes (Scolopacidae)

Code 4

SPTS

Code 6

CALACU

ITIS

Egg Color:

Brown olive or geen speckled with brown.



Number of Eggs:

4



Incubation Days:

19 - 23



Egg Incubator:

Female



Nest Location:

On ground.



Nest Material:

Leaves and grasses.



Migration:

Migratory



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General

Sharp-tailed Sandpiper: Medium-sized sandpiper with dark brown upperparts; white underparts with faint olive-brown streaks on breast and sides. Head has rufous crown. Wings are dark brown. Tail is dark brown and pointed in flight. Winter adult lacks warm color; breast gray with faint streaks. Sexes are similar; female is smaller with shorter wings. Juvenile has bright buff, chestnut and white fringes on upperparts, rufous crown; white supercilium; bright buff breast; may have faint streaks forming a narrow ring around throat; buff flanks.

Range and Habitat

Sharp-tailed Sandpiper: Eurasian species; casual spring and common fall migrant in coastal regions of western Alaska and along the Aleutian archipelago; rare fall migrant along entire Pacific coast. Preferred habitats include tidal sandbars, mudflats, estuaries, swamps, inland lakes, and shorelines.

Breeding and Nesting

Sharp-tailed Sandpiper: Four brown-olive or green eggs speckled with brown are laid in a ground nest made of grass and leaves. Male is polygamous, mating with one or more females each season. Incubation ranges from 19 to 23 days and is carried out by the female. Young fly at 18 to 21 days.

Foraging and Feeding

Sharp-tailed Sandpiper: This sandpiper’s diet is highly variable. It includes insects and other invertebrates such as bivalves, snails, crustaceans, worms, and occasionally aquatic vegetation. It has also been known to eat seeds. It forages in small groups or large flocks, sometimes with other species.

Vocalization

Sharp-tailed Sandpiper: Emits sharp, metallic, piping calls and a shrill whistles when in flight.

Similar Species

Sharp-tailed Sandpiper: Pectoral Sandpiper has a more mottled plumage and white eyebrow.

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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