There was a discussion about that on hn recently. It was really about crows, but ravens are close cousins. https://news.ycombinator.com/item?id=34139048 https:

There was a discussion about that on hn recently. It was really about crows, but ravens are close cousins. https://news.ycombinator.com/item?id=34139048 https://news.ycombinator.com/item?id=34139048