- Geococcyx californianus (Greater Roadrunner)
- Geococcyx velox (Lesser Roadrunner)
Hughes, J. M. 1996. Greater Roadrunner Geococcyx californianus. The Birds of North America. A. Poole and F. Gill, eds. No. 244. The Academy of Natural Sciences, Philadelphia, PA, and the American Ornithologists' Union, Washington, D. D.
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- First online 28 August 2007
- Content changed 28 August 2007
Citing this page:
Tree of Life Web Project. 2007. Geococcyx. Roadrunners. Version 28 August 2007 (temporary). http://tolweb.org/Geococcyx/91904/2007.08.28 in The Tree of Life Web Project, http://tolweb.org/