Semi-palmated Sandpiper
Calidris pusilla
The Semi-palmated Sandpiper is a rare migrant to Britain, typically seen on coastal wetlands and estuaries during the summer and early autumn months. It is a small, energetic shorebird that can be glimpsed in the UK, particularly in the southwest and eastern regions.
Field Identification Guide
Use these features to identify Semi-palmated Sandpiper in the field.
At a glance, the Semi-palmated Sandpiper can be identified by its black legs, distinctive black stripe on the forehead, and a relatively straight, black bill. Its brownish-grey plumage with white undersides also helps to distinguish it from other small shorebirds.
The Semi-palmated Sandpiper is smaller than a Starling, measuring approximately 13-15 cm in length.
The male Semi-palmated Sandpiper has a brownish-grey back with white undersides, and a distinctive black stripe on the forehead, with a rufous tint to the crown and scapulars during the breeding season.
The female Semi-palmated Sandpiper is similar to the male, with slight variations in the intensity of the plumage colours, but overall, the female's plumage is virtually indistinguishable from that of the male.
The Semi-palmated Sandpiper's call is a high-pitched, sharp "chip" or "cheep" sound, often repeated in a series of short, staccato notes.
Semi-palmated Sandpipers are active, nimble birds that feed on small invertebrates and crustaceans in the mud and sand, often running and stopping suddenly to probe for food. They have a swift, direct flight style, typically flying low over the water.
The Semi-palmated Sandpiper can be confused with the Little Stint, but can be distinguished by its black legs, straighter bill, and the absence of a white stripe above the eye, as well as its more energetic and agile feeding behaviour.
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