Surfbird (Calidris virgata)

The Surfbird is a medium-sized coastal bird that appears in September in the Pacific Coast of Costa Rica, as they migrate towards the south to escape from winter. They are mainly grayish-brown on the upperparts, throat and chest, white with some dark spots on the underparts, bright yellow legs and a relatively small black bill with a little yellow on the base. Its color pattern helps them camouflage easily among the dark shore rocks, like the image below, where three juvenile surfbirds are present, one in the foreground rock and two in the background, along a Ruddy Turnstone and a smaller Sandpiper. Can you spot all of them?