kasuisbiscuits:

One of the oldest symbols in Japanese mythology is the 3-Legged Bird, called Yatagarasu (八咫烏) in Japanese. This legendary bird was said to have led the Emperor Jimmu from Kumano no kuni (熊の国), which is present-day Wakyama Prefecture, to Yamato no kuni (大和国), which is present-day Nara Prefecture. The three-legged (or “tripedal”) bird is a creature found in various mythologies and arts of Asia, Asia Minor, and North Africa.It is often thought to inhabit and represent the sun.