Flocking

Flocking is the behavior exhibited when a group of birds (or other animals) move together in a flock. A mathematical model of flocking behavior was first simulated on a computer in 1986 by Craig Reynolds and soon found its use in animation. Jurassic Park notably featured flocking and brought it to widespread attention by mentioning it in the actual script[citation needed]. Other early uses were the flocking bats in Tim Burton's Batman Returns (1992), and the wildebeest stampede in Disney's The Lion King (1994).