All good posts, gentlemen, on an interesting subject. Where I grew up, hunting out of an airplane with a permit was legal. Hunting and flying on the same day wasn't illegal. I can see the logic behind it, but it is legal. Maybe not the most moral thing to do, and everyone knew everyone elses airplanes. Most people just avoided flying during hunting season, didn't want to pi$$ off their neighbors who were out looking for the big bucks.
I was nothing to waste two boxes of 12 gauge shells and get one or two coyotes. Like anything, shooting out of an airplane took a lot of practice. The coyotes and fox weren't very smart at first, they'd just run in a straight line away from the airplane. That was an easy shot. Once the animals knew they were being hunted, they'd zig and zag to avoid the pellets. That's when it got tricky, but it sure did get fun!! The big thing to avoid was shooting a hole in the strut, wing, or floorboard of your airplane. Made for a miserable day if you tore a hole in your airplane.