The confusion is made worse by the fact that the bird supposedly called a raven (though whether it’s Corvus coronoides or Corvus mellori or something else I can’t certainly say right now) is, at least in Melbourne and the part of western Victoria where I now live, exclusively called a crow. If you called it a raven, many, perhaps most, people wouldn’t know what you were talking about, because we simply don’t have any bird called a raven, though we might have some vague sneaking notion that they’re a northern hemisphere version of our crows or something like that.

I can’t confidently speak further than that, but I’m under the impression the same is true in Sydney.

If taxonomists call them ravens but everyone else calls them crows, I wish the taxonomists would accept the reality that usage defines language, not encyclopædia, and give up on trying to pretend they’re ravens and not crows.