I'm trying to find the details on what courtship between ravens is like. I've searched under "ravens", "ravens + courtship", "Courtship between ravens", and various other permutations. Plenty of links get me when it starts, along with some vague descriptions, but I need some concrete examples, please. "Displays of intelligence" just makes me think they draw algebra in the mud.
This is actually for a picture, not a fic, so if anyone can point me toward a reference or two, I'd be most grateful.