A bevy of Bald Ibis flying from Austria to Tuscany led by two hang-gliders: it's the singular display which can be seen raising the eye to the sky. A searcher group of the Konrad Lorenz Institut in Grunau (Austria) realized a project to teach the volatiles the migratory route toward the South. The Bald Ibis, migratory birds with very old origins, have been bred by "adoptive mothers", which pilot the...