You're most likely to spot small flocks of Sanderling (7-8 in) in their pale winter plumage - light gray above and white below with black legs and beak - chasing the waves and probing the sand for crabs and other small crustaceans on the beaches of the Atlantic, Pacific, and Gulf coasts.
In summer, Sanderling breed on islands above the Arctic Circle on dry rocky tundra close to lakes or ponds.
Could it be? Dunlin are larger than Sanderling with a longer, downcurved bill. Piping Plover are smaller, stay higher up on the beach, and don't chase waves. Western Sandpiper are smaller and browner than Sanderling.
Did you know? After eating, Sanderling will often regurgitate pellets of sand and mollusk and crustacean shells.