Sitting in traffic, my wife and I watched as a seagull flew directly up the middle of the road. It judged wind and theta, the angle necessary to make a dropped bomb hit a target. I could see the bird's eye look into my own eye. Then it kind of wiggled it's flapply little legs, spread them wide, and unclenched.
Let's just say how pleased I am that Ford has been dragging their feet producing a Focus convertible model.