There are fifteen species of crane in four genera. The crane is a symbol of good fortune in South Korea. Red-crowned cranes can stand about 5 feet (1.5 m) high. The red-crowned crane is a large East Asian crane among the rarest cranes in the world. In some parts of its range, it is known as a symbol of luck, longevity, and fidelity.

Source: https://www.factretriever.com/south-korea-facts, https://en.wikipedia.org/wiki/Red-crowned_crane