There are various reasons an umpire would rule a no pitch. A home plate umpire not in a ready position to call a ball or strike may call a no pitch. If an umpire believes the batter is not ready or if the batter is not in the batter's box, a no pitch may also be called. A no pitch is usually ruled if any umpire calls time while a pitch is being delivered.
One of the most famous no pitch calls was when ten-time All-Star Randy Johnson hit a bird with a pitch. The ball was near the plate when it hit a flying bird. After the pitch hit the bird, the ball was ruled dead. The bird was also ruled dead. This no pitch call is so well known that there are more Google search results for "Randy Johnson bird" than there are for "Randy Johnson baseball."
- Joe Morgan, Richard Lally (2011), Baseball For Dummies, ISBN 1118054377,
The umpire's call whenever he rules that a pitch is neither a ball nor a strike, usually because the pitcher released the ball after the umpire called timeout.
- Landers, Chris. "Let's remember the time Randy Johnson accidentally drilled a bird with a fastball". mlb.com. Retrieved 16 March 2018.