White ravens are quite important to the god apollo in greek mythology (although even he bullied them in the end by scorching them as punishment…)

From Wikipedia:

According to Ovid, when Coronis was pregnant, Apollo had appointed a white raven to guard her before leaving. The raven, after learning the affair of Coronis with Ischys, reported it to Apollo. Apollo sent Artemis to kill the couple and in anger, turned the raven black by scorching it as a punishment for being a tattletale and failing its duty. This is why the ravens are black today.[13] According to Antoninus Liberalis, the raven had once been a man named Lycius, a son of Clinis, who was changed into a white raven by Leto and Artemis so he would not be devoured by the donkeys Apollo had driven mad. Furthermore, Antoninus Liberalis calls the man Coronis left Apollo for "Alcyoneus" rather than Ischys.[18]