The Yatagarasu or Sun Crow (八咫烏) is noted to be a sign from the divine in Shinto mythology.
One instance has the Sun Crow being sent to Emperor Jimmu after he and his men reached an impasse during their military exploits. Amaterasu the Sun-Goddesses told him in a dream the bird would come and after it did so, the bird showed his army the way around the impasse.1
1. Martin, P. (1997) ”The Chrysanthemum Throne”. Gloucestershire: Sutton Publishing Limited.
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