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Marsh Sandpipers are small waders. Their plumage is cryptic. During the non-breeding season they basically have a white front and a grey back. Except for the sides of the chest, which are streaked grey, the entire front, from throat to undertail coverts, including the flanks, is white. The head, except for white frons, eyebrows and chin, is white with grey striation. The nape of the neck and the wings are grey, with fine white edge lining. In-flight they do not show a wing bar, but a prominent white back. During the breeding season, except for white eye-rings, the head, neck, throat, chest and flanks become streaked grey-brown. The wings develop brownish colours. The light-brown base contrasts with dark-brown patches and white edges, most prominently on the scapulars. The eyes have dark irises. The dark-grey bill is straight, very slim and longer than the size of the head. The legs and feet are olive-grey. The legs are long and in-flight the feet protrude clearly beyond the tail. Juveniles roughly resemble non-breeding adults, but they have very crisp, fine white edge-lining on their wing feathers and browner coverts and tertials.

Compared to other species of small sandpipers and stints, Marsh Sandpipers have the most slender straight black bill.

The correct identification of waders ("shorebirds"), e.g. of the Calidris, Tringa, Actitis etc. or of the Charadrius, Pluvialis and related genera in the field can be quite tricky. We have therefore made an attempt to give some advice HERE.

The overall distribution of this species can be assessed, and specific locations where birds have been spotted can be found, based on individual sighting reports submitted by birdwatchers to ebird.org .

The global distribution of the Marsh Sandpiper is available HERE .

Marsh Sandpipers are a migratory species. Their breeding grounds are in open grassy steppe and taiga wetlands from far-eastern Europe to central Asia. Most Marsh Sandpipers spend the northern winters in Africa, Arabia or India, while a smaller number migrate to South-east Asia or Australia.

In Europe Marsh Sandpipers are summer breeding migrants to isolated sites in the Black Sea coastline, the Baltic states, and southern Finland. Their main breeding grounds are eastward from there, in mid-latitude European Russia and beyond. Apart from some overwintering sites in southern Iberia, they are otherwise mostly found in the eastern Mediterranean during their migration between Africa and their breeding grounds.

Marsh Sandpipers breed around areas with fresh water, such as grassy marshes or open taiga bogs, but also steppe.

J. Pires reports spotting Marsh Sandpipers in the Tejo estuary, Portugal, on two occasions in February 2022.

A. Sarok found a Marsh Sandpiper in Vojvodina, Serbia, in the timeframe 2010-2024.

Marsh Sandpipers were also seen by us in Australia.