Roadrunner, a speedy ground bird of the southwestern United States and northern Mexico. It is also called chaparral cock, paisano, and snake killer. It is New Mexico's state bird.

The roadrunner grows to almost 24 inches (60 cm) in length, including its 12-inch (30-cm) tail. The feathers on the top part of its body are greenish- and bluish-brown streaked with white; on the bottom part, they are completely white. The head has a crest of feathers. Behind each eye there is a patch of bare skin that is partly bluish and partly reddish. On the roadrunner's back there is a dark patch of skin that the bird exposes to the sun to warm its body during cold weather.

The roadrunner eats lizards, snails, mice, snakes (including rattlesnakes), insects, and cactus fruits. It swallows its food whole. The female lays two to six whitish eggs in a nest of twigs built on a cactus or in a low tree or shrub. Both parents care for the young. Roadrunners mate for life.

The roadrunner is Geococcyx californianus of the cuckoo family, Cuculidae.

The roadrunnerThe roadrunner eats lizards, snails, mice, snakes, insects, and cactus fruits.