Common cranes returned to breed in England in 1979 after a 400-year absence and now have over 70 breeding pairs. The expanding population faces welfare challenges from habitat quality and human disturbance.
Common crane chicks are vulnerable during the extended period before fledging at around 10 weeks. Human disturbance at nest sites causes parental desertion that leaves chicks vulnerable. Reserve management that restricts access near nesting areas and maintains wet grassland feeding habitat directly protects individual crane welfare during this critical period.