Definition: A score on an individual hole that is one stroke below par. On a par-4, a score of 3 is a birdie; on a par-5, a score of 4 is a birdie; on a par-3, a score of 2 is a birdie.
See also: Golf History FAQ: What is the origin of the terms "birdie" and "eagle"?
Common Misspellings: Birdey, birdy
