Curlew Sandpiper (Calidris ferruginea)
Curlew Sandpiper (Calidris ferruginea), Matsu Islands, Taiwan
This wader is highly gregarious, and will form flocks with other calidrid waders, particularly Dunlin. Despite its easterly breeding range, this species is regular on passage in western Europe, presumably because of the southwesterly migration route.
It forages in soft mud on marshes and the coast, mainly picking up food by sight. It mostly eats insects and other small invertebrates.