Angelo d’Arrigo was an Italian aviator, of French origin, who held a number of world records in the field of flight, principally with microlights and hang gliders, with or without motors. In 2003 he flew 5,500 kilometres from northern Siberia to the Caspian Sea in Iran in the company of a flock of Siberian Cranes who had been born in captivity and, due to imprinting, considered him their parent: the bird is at risk of extinction and in order to try to save the species, Russian ornithologists hatched this plan: have the eggs incubated under Angelo’s hang-glider, so the chicks saw this as they hatched. Have Angelo be with the chicks as they fledge. And when they were ready to fly, have them fly alongside Angelo so they would consider him their mentor. That way, he could show them the traditional migratory route for their species. They had no other way to learn it.