I have witnessed man's desire to shoot anything that flies. It was at a shooting range in the military, my group (ie eight soldiers) each had a full clip and were supposed to do target practice. Suddenly two unsuspicious ducks passed, flying at 2 meters from the ground, at a very low speed. Everybody without exception emptied their clip on these birds (all 100-ish bullets missed fortunately, so good for the Dutch army).

Imagine the bonus is a ball of fire in the sky for the winning shot!