Literally means eight span crow. Yatagarasu is a holy creature serving a deity, Amaterasu Oomikami and is a three legged crow that inhabits the sun.
The legends says that the yokai Yatagarasu was sent down by the goddess Amatersu from the heaven to guide Emperor Jimmu to conquer his quest. It was also said that the Yatagarasu is the incarnation of Taketsunumi no mikoto.