A man holds a Banyao kite during the competition on April 6. A Banyao kite is a traditional whistling kite – a unique type of South Chinese kite and a part of Nantong culture. Kite-flying competitions usually test a kite's flying duration in a designated area and from a designated flying angle, but for Banyao kites, the craftsmanship and whistling sounds are also taken into consideration. [Photo/ntjoy.com.cn]