Western Sandpiper
Photo: Alan D. Wilson · CC BY-SA 3.0

Sandpipers and Allies

Western Sandpiper

Calidris mauri

LCLeast Concern
Family
Sandpipers and Allies (Scolopacidae)
Order
Charadriiformes

Overview

The western sandpiper (Calidris mauri) is a small migratory shorebird. The genus name is from Ancient Greek kalidris or skalidris, a term used by Aristotle for some grey-coloured waterside birds. The specific mauri commemorates Italian botanist Ernesto Mauri (1791–1836).
This is one of the most abundant shorebird species in North America, with a population in the millions.

Summary from Wikipedia, available under CC BY-SA 4.0.

Range and habitat

Breeds Chukotskiy Peninsula and Anadyr (northeastern Siberia; few), St. Lawrence Island (Bering Sea), and western and northern Alaska mainland; winters coastal Washington to Peru and Galapagos, southeastern Canada to Caribbean, and inland central Mexico to northern Costa Rica.

Range description: AviList Global Avian Checklist.

Sources and further reading

Last updated September 29, 2026.