Greese, H. 1992 August 18 (continued) a small ravine that feeds Silver Creek from the south slope, ~150 m S. of the road, SE of Polo I & ~100 m ESE of yesterday. He is in a perfect hurlig coil in dappled sun, on the W. side of the bare channel (~40cm wide) facing across it - waiting for a rabbit? At 0822hr I localized the signals of C. molossus ?3 & ?17 at the same site as yesterday. At 0832hr C. molossus ?12 at the same place as yesterday, in a loose coil (just forming?) - Josh photos and she slowly retreated. As I drove by Alden Hayes driveway a subadult Masticophis bilineatus shot across the road. Last night Sarah Schmidt (U.S. Forest Service) gave me details of a combat bout between 2 C. molossus, observed by Larry Marting (Bisbee, also USFS) and another man on July 29, 1992, on a plateau by man-made rock formations above the USFS Visitors Information Center at the mouth of Care Creek Canyon. The snakes were "big, ~3" in diameter", winding up w/ each other, knocking each other down, hissing, raising 15-18" above the ground beside a "sage bush". The men watched for ~10 minutes; the snakes ignored them and were still "dancing" when they left. Sarah and I will leave before noon today for Tucson so I can give a talk to the local Herp Society.