Red-crowned cranes at Kushiro Marsh on the island of Hokkaido. While the population on Hokkaido is resident, others migrate from eastern Siberia and northeastern China to the Korean peninsula and east-central China. They are among the rarest cranes in the world. In some parts of its range, the red-crowned crane is regarded as a symbol of luck, longevity, and fidelity. Photo courtesy of the US Geologic Service/ Barnett Rattner.