Migratory cranes depend on a network of wetland stopover sites for rest and refueling during their long seasonal journeys, and habitat loss at even a single key stopover can affect populations across continents.
Cranes arriving at breeding grounds in poor body condition due to depleted stopovers produce fewer offspring and are more vulnerable to disease and predation. During migration itself, birds denied adequate rest and food experience physiological stress and fatigue. Repeated flushing by human disturbance at roost sites forces birds to expend energy they cannot replace. Protecting and restoring key stopover wetlands is among the highest-leverage actions for crane welfare, effectively protecting thousands of individual birds during their most vulnerable period.