The
curlew sandpiper (
Calidris ferruginea) is a small
wader that breeds on the
tundra of Arctic Siberia. It is a strongly
migratory bird, wintering mainly in Africa, but also in Australia, New Zealand, and south and southeast Asia. The curlew sandpiper is similar to the
dunlin, and has a length of 18–23 cm (7.1–9.1 in) and wingspan of 38–41 cm (15–16 in). In breeding season it has a bright red underside. This picture shows a curlew sandpiper in Thailand, with its winter plumage.
Photograph: JJ Harrison