In ancient times, carrier pigeons were an important communication tool. People use trained pigeons to deliver messages because pigeons can fly over long distances and accurately deliver messages to their destination.

The use of carrier pigeons can be traced back to the ancient Egyptian and Roman periods. During that era, pigeons were trained to carry commercial and military messages. During the war, carrier pigeons were used to deliver important orders and intelligence.

In China, the use of homing pigeons also has a long history. According to historical records, as early as the Han Dynasty, people began to use carrier pigeons to transmit messages. By the Tang Dynasty, carrier pigeons had become an important means of official communication. At that time, the government set up a special agency to manage carrier pigeons and dispatched professional carrier pigeon messengers to deliver important national documents and orders.

In ancient times, the use of homing pigeons also involved civil communication. Businessmen, travelers and families also often used carrier pigeons to convey messages and greetings. They tied a piece of paper with a message written on it to the pigeon's feet and then released the pigeon to carry the message to its destination.

In addition to conveying information, carrier pigeons are also used in other ways. For example, in ancient China, homing pigeons were also used to predict weather and feng shui. Pigeons are thought to be able to sense changes in the weather, so they can be used to predict future weather conditions.