In order to hear each other over long and mountainous distances, some Turkish villagers whistle instead of talk! This special secret language is called “bird language” and is used in place of speech. Only about 10,000 people know it today, and it is considered an endangered part of world heritage. In order to preserve it, “bird language” is being taught in some local schools. People can invite each other to tea and describe their feelings, all within a whistle!