LW018 1964 Geococcyx californicus June 13 Catalina Hwy., 1 mi. E. just with Tangue Verde Rd. Tucson Pima Co, Arizona flushed adult from west 4 1/2 feet up in Cholla. nest exterior of big giant twigs. lining of plant down. bottom of nest not supported by cholla branches, only support from side about 1/2 way up nest. many sticks on ground below nest as if either many lost during construction or bottom gradually collapsing. Adult jumped off to ground. Ran low to ground + nearly horizontal for 20-30 feet. Crouched with feathers sleeked. Crouched low + ran horizontal again. Repeated this several times until disappeared from sight.