There also were wind whistles handmade or molded from clay. Many have been made since the 17th century, but few of the early clay bird whistles remain.

Local handicraftsman Ren Guohe blows a whistle-shaped clay statuette in Jinzhuang village of Huaiyang county, Central China's Henan province, July 9, 2018. [Photo/Xinhua ...

Wei Zhaozhong colors a painted clay sculpture at his home in Rizhao city, East China's Shandong province, January 3, 2018. [Photo/IC] Wei Zhaozhong, a nearly 70-year-old villager in Shandong ...