This has been bugging me for awhile, a month ago I was in the mountains hiking and there was what looked like a crow. It kept flying back and forth near this cliff I was at, it would roll upside down and freefall for about 100 feet until it was about 200 feet above the ground then roll upright. After this it would climb in altitude and repeat. I saw him do this about 8 times then flew away. Is this some kind of mating ritual? Inb4 he did a barrel roll.

shitty pic related, its him upside down.