Birds Are Good
Birdie is a term used to denote what type of score you shot on a specific hole during a round of golf. The course determines an expected number of strokes to hole the ball at each tee, usually 3 through 5, called par. Birdie simply means that you used one stroke less than par to get the ball into the hole, giving you minus-1 on your total score. The term is believed to be derived from 19th century American slang, when "bird" meant cool, good or excellent. In fact, good single-hole scores keep with the bird theme. Eagle denotes 2 under par; and albatross, a rare bird, is the term for an equally rare event: 3 under par.