The curlew sandpiper is a passage migrant through Britain en route from its Siberian breeding grounds to African wintering areas, with each bird representing a remarkable journey and welfare considerations across a vast flyway.
Curlew sandpiper welfare during British passage depends on the availability of shallow freshwater scrapes and coastal pools where birds can refuel during their journey. The loss of suitable wetland habitats in Britain reduces the staging capacity available to passage migrants. The species breeding success in Siberia is linked to lemming cycles that affect predator abundance, creating boom-and-bust passage years. Long-distance migrants passing through multiple countries face cumulative threats across the flyway including habitat loss and hunting.