The Greater Roadrunner (Geococcyx californianus) is native to the southwestern United States and northern Mexico. Its geographical distribution extends across parts of California, Arizona, New Mexico, Texas, Oklahoma, and into northern Mexico, including states like Sonora and Chihuahua.

The Greater Roadrunner typically inhabits arid and semi-arid regions, including deserts, scrublands, and open prairies. These areas are characterized by dry climates with sparse vegetation, predominantly thorny shrubs, cacti, and open ground. The species is adapted to hot environments with high temperatures during the day and cooler nights.

The Greater Roadrunner occupies a niche as a ground-dwelling predator and forager. It is well-adapted for running at high speeds, which allows it to chase down prey such as insects, small mammals, reptiles, and birds. This bird is also known to be opportunistic, scavenging for carrion and consuming fruits and seeds when available. Its ability to thrive in arid environments is supported by its efficient water-conservation physiology and opportunistic feeding behavior.