Compared with crested ibis, the red-crowned crane is an auspicious animal and an endangered animal in the world.

Crested ibis is an endangered animal in the world. Historically, Zhu Xi was widely distributed in East Asia, including eastern China, Japan, Russia (former Soviet Union), North Korea and other places. Since the mid-20th century, due to the impact of human social production activities on the environment, mainly the reduction of paddy fields in winter, environmental pollution caused by chemical fertilizers and pesticides, forest reduction and human disturbance, crested ibis has been difficult to adapt to the changed environment, and its population has dropped sharply. Red-crowned crane is an auspicious animal, a symbol of longevity, and a national first-class protected animal. Also known as cranes and white cranes. ? Kun, there are many names for red-crowned cranes in China ancient books, such as "fairy bird" in Er Ya Yi and "fetal bird" in Compendium of Materia Medica.