A sanderling is a small, migratory shorebird belonging to the family Scolopacidae. With a scientific name of Calidris alba, this bird species is widely distributed across the northern hemisphere, particularly during the summer months. It can be found nesting in the Arctic tundra and taiga regions, and during the non-breeding season, it undertakes extensive migrations to warmer habitats in coastal areas.
The sanderling is characterized by its compact size, measuring approximately 18-20 centimeters in length. It has a plump body, short neck, and relatively short bill. During the breeding season, its plumage is brownish-black on the back and wings, while the belly is white. However, during the non-breeding season, its feathering undergoes a dramatic transformation, turning pale gray or white all over, providing effective camouflage against sandy beaches.
A distinctive behavioral characteristic of the sanderling is its constant activity on the shoreline, often seen scurrying back and forth along the water's edge in search of marine invertebrates, including tiny crustaceans, mollusks, and insects. Its rapid, darting movements make it an agile forager, capable of pecking prey from the sand and probing into the wet sand with its bill.
Due to its iconic and recognizable appearance, the sanderling has become a popular bird for birdwatchers and nature enthusiasts. Its ability to adapt to various habitats, from Arctic tundra to tropical beaches, exemplifies its resilience and adaptability as a species.
