Across the canyon, a larger raven was worrying at what looked like some kind of food. Mom? The youngster hopped in place again, and then launched himself across the canyon toward her. His flight was slow and sagging, and he was only at two-thirds of the height of the wall when he reached the other side. He scrabbled at the sheer brick, trying for a foothold, and then slowly sank to the bottom of the canyon. He flapped his wings a couple of times, but didn't make a serious attempt to scale the height again, and finally Mom took pity and came down to feed him.
I just thought it was kind of neat.