Migliaia di pecore migranti dalle valli dei Pirenei alla riserva naturale di Bardenas

People watch thousands of sheep heading towards the Bardenas Nature Reserve in El Paso, Carcastillo town, Navarre region, northern Spain, 18 September 2011. The migration of thousands of sheep from the Pyrenean valleys of Roncal and Salazar to Bardenas, is a tradition since the year 882. The flocks will remain in Bardenas nature reserve until June. (EPA/JESUS DIGES)