Broad-billed Sandpiper

A small, compact wader with a distinctive drooping bill tip that gives it a slightly downcurved profile, Calidris falcinellus is distinguished from similar Calidris species by its split supercilium and streaked breast. During the breeding season it forages by probing mud and shallow water for insects, larvae, and small invertebrates, while on migration and wintering grounds it feeds gregariously alongside other shorebirds, contributing to the turnover of invertebrate communities in intertidal sediments and acting as a prey item for raptors and other predators.

The species breeds in subarctic forest edges, bogs, marshes, and other wetland habitats across northern Russia, and migrates along extensive flyways to winter in coastal and intertidal zones across South and Southeast Asia and Australia, with records spanning the Philippines, Indonesia, Sri Lanka, India, and Australia.

Its decline is driven by the loss and degradation of intertidal and inland wetland habitats through coastal urban and housing development, expansion of aquaculture ponds, and water management schemes such as dams that alter hydrology on both breeding and non-breeding grounds. Hunting and trapping pressure along migratory routes, habitat modification from logging in breeding areas, and the spread of invasive species further compound these pressures.

Conservation responses include protection of key staging and wintering wetlands under international agreements such as the East Asian-Australasian Flyway Partnership, site-based habitat management, and monitoring of population trends at important stopover locations. Despite these measures, the population continues to decrease, and the species remains classified as Vulnerable, reflecting ongoing habitat loss across its migratory network and the absence of reversal in key threat drivers.