Although the Roadrunner (Geococcyx californianus) has long been known for its bird-catching propensity, there are few well-documented accounts of such behavior under natural conditions. Bent (U.S. Natl. Mus., Bull. 176:44-45, 1940) summarizes a number of observations, mostly concerning pet Roadrunners or juvenile prey, and Zimmerman (Condor, 72:475-476, 1970) details the capture of several adult passerines near a feeding station in New Mexico.