I don’t remember how it came up, but I was at a baseball game tonight and was reminded of this (text from Wikipedia):

In a freak accident on March 24, 2001, during the 7th inning of a spring training game against the San Francisco Giants, Johnson threw a fastball that struck and killed a dove. The unlucky bird swooped across the infield just as Johnson was releasing the ball. After being struck by the pitch, the bird landed dead amid a “sea of feathers.” The official call was “no pitch.”