greater roadrunner (Phoenix Zoo - Arizona Trail)

greater roadrunner

Geococcyx californianus

Summary ⁶

The Greater Roadrunner, taxonomically classified as Geococcyx californianus, meaning "Californian Earth-cuckoo," is a long-legged bird in the cuckoo family, Cuculidae. Along with the Lesser Roadrunner, it is one of two species in the roadrunner genus Geococcyx. This roadrunner is also known as the chaparral cock, ground cuckoo, and snake killer.

Geographic range ⁷

Greater roadrunners are primarily a species of the southwestern United States, but their full range includes other areas as well. They occur in California, Arizona, Nevada, Utah, Colorado, Texas, New Mexico, Kansas, Oklahoma, Louisiana, and Arkansas. Their range continues into southern Mexico, where their closest relative the lesser roadrunner (Geococcyx velox) becomes the dominant species.

Biogeographic Regions: nearctic (Native )

Iucn red list assessment ⁸

Red List Category

Least Concern

Red List Criteria

Version

3.1

Year Assessed

2012

Assessor/s

BirdLife International

Reviewer/s

Butchart, S. & Symes, A.

Contributor/s

Justification

This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is extremely large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.