i dont know but i once saw randy johnson throw a fastball during a baseball game in a big stadium and half way to home plate it hit a bird who happened to fly into its path at that exact moment. bird exploded.
anything is possible.
http://media.ebaumsworld.com/index.php?e=birdball.mpg
jason
"Son, you tried you best and failed miserably. The lesson is, never try"
-homer simpson