Migratory shorebirds making trans-hemispheric flights depend on staging habitats for refueling; rapid intertidal habitat loss along the East Asian-Australasian Flyway has caused population crashes.
Migratory shorebirds arrive at staging areas in critically depleted condition, needing to double their bodyweight before continuing. When staging habitats are destroyed, birds must choose between departing too light for the next leg or dying while searching for alternative food. The welfare harm is both direct - starvation and exhaustion - and indirect through failed breeding seasons.