They're carrion birds. They follow death and peck at flesh, the equivalent of vultures circling overhead. They're beautiful, intelligent creatures, but where they go, you're likely to find death.

Ravens are omnivores. They're pretty opportunistic about food. And yes, carrion is definitely on the menu.

Yes, they're carrion birds. “But they also eat oats and berries sometimes” doesn't explain their bad reputation.

I don't think it's quite accurate to call them carrion birds. It's more accurate to call them opportunistic omnivores.