Whooping cranes were nearly extinct in the 1940s. A remarkable reintroduction program taught captive-bred cranes their migratory route by following ultralight aircraft from Wisconsin to Florida, demonstrating innovative approaches to crane welfare and conservation.
Whooping crane chicks reared for ultralight-led migration are kept away from human contact using costume rearing (keepers in full crane costumes) to prevent imprinting that would prevent wild social behaviour. The physical demands of following an ultralight aircraft are significant but within the capacity of young cranes that are simultaneously learning essential navigation behaviour. The welfare of each individual is carefully monitored throughout the rearing and migration process.