Folk singer Roger Whittaker, famous for his 1969 hit song Durham Town and expert whistling, has died at the age of 87. His other hits included The Last Farewell and New World in the Morning, and he sold nearly 50 million records around the world, his website said. After starting in folk clubs, he went on to success with the Skye Boat Song, a duet with Des O'Connor in 1986.