There was a tv show that aired on HBO, in 2005 called, "Carnivale." It was about an Avatar of white light, named Ben Hawkins (hawk) and an Avatar of dark light, named Justin Crowe. (crow)It only ran for 2 seasons and was supposed to go for at least a third, but was scraped. The writer for the show published a pitch document for the 3rd season, which described more of the esoteric lore associated with the shows subject, ie..Avatara. If you are really wanting to get to the meat and potatoes of what the crow is all about, that is the direction you want to look. The crow has made it's way into popular culture in very recent times and it is symbolic of the new age in a very occult sort of way. I am no expert when it comes to the "spirit animal" omens, so I am sure that others who have posted can be of more assistance in that area, but I DO know that there is both a VERY interesting read associated with its emergence on the scene of media and may lead you to the meaning and proper context of your query.