Sanderling Bird Spotted After 7,400 km Migration

A tagged Sanderling, a small migratory shorebird, has recently been recorded on Narcondam Island in the Andaman and Nicobar archipelago after travelling over 7,400 kilometres from South Australia. This rare sighting highlights the extraordinary migratory endurance of shorebirds and underscores the ecological importance of remote island habitats in supporting global bird migration routes.

About the Sanderling

The Sanderling (“Calidris alba”) is a small, plump wading bird known for its agile movement along sandy shores. Its name originates from Old English “sand-yrðling,” meaning “sand-ploughman.” During winter, the bird appears pale, almost white, with a distinct dark shoulder patch. In summer, it undergoes a striking transformation, developing a brick-red colouration on the face and throat.

Habitat and Global Distribution

Sanderlings inhabit a wide range of environments, including tidal sand flats, mudflats, and the shores of lakes and rivers. They are also found in moist vegetated areas, well-drained slopes, and rocky ridges. The species has a broad global distribution, spanning North America, Europe, Asia, South America, Africa, and Oceania, making it one of the most widely dispersed shorebirds.

Migration and Feeding Behaviour

Sanderlings are complete migrants, travelling distances ranging from 3,000 to 10,000 kilometres between breeding and wintering grounds. Their recent sighting in the Andaman and Nicobar Islands demonstrates their long-distance navigation capabilities. These birds are carnivorous, feeding primarily on small crabs, molluscs, and other invertebrates found along coastal ecosystems.

Important Facts for Exams

• Sanderling’s scientific name is “Calidris alba”.
• It is a long-distance migratory shorebird travelling up to 10,000 km.
• Found across all major continents except Antarctica.
• IUCN conservation status: Least Concern.

Threats and Conservation Status

Despite its wide distribution, the Sanderling faces threats from habitat loss, particularly the degradation of wetlands and coastal ecosystems. Environmental pollution, including pesticide contamination, also impacts its survival. However, the species is currently classified as “Least Concern” by the IUCN, though continued conservation of migratory habitats remains essential for its long-term sustainability.