Ruddy Turnstone

A Ruddy Turnstone (Arenaria interpres) feeding on a sea urchin. This bird is in the middle of moulting, with the brown nonbreeding feathers on the wings contrasting with the rufous-and-black colour of the breeding plumage feathers.
Ruddy Turnstones are small shorebirds which use their short beaks to turn over stones as they forage for invertebrates, small fish, or other prey along beaches in worldwide. They breed in the high arctic of North America, Europe, Asia before migrating south each year to winter on beaches as far south as Argentina, South Africa, and New Zealand. Not all turnstones migrate, and this individual stayed in Peru for the northern summer, rather than fly to the arctic.