Heene, H. 1990 August 21 (continued) Urosaurus ornatus. Our directions come from a BLM agent who brought Barney a beautiful lime green Crotalus lepidus from this particular canyon. We could see thick stands of pine and oak higher up. Driving to and from the Hatchets I was impressed by large expanses of nice grassland, seemingly suitable habitat for Sistrurus catenatus - there are even lots of Dipodomyys speabilis mounds. At 140 hrs I drove up to Portal Cochise Co., Arizona. At 1410 hrs as I drove up Silver Creek Canyon, 0.8 mi W. of Care Creek Rd. I saw an adult Crotalus molossus stretched out, as if just having crawled onto the dirt road from the S. As I came out of the truck it exploded into sustained rattling w/ head highly elevated - reminiscent of C. durissus. Met Wade Sherbrooke and three student volunteers at the Duffner turnout. At 1435 hrs, U. molossus #3 rattled, stretched out by the garbage can (underneath which shelter a very fat Spernophis variagatus), then pulled back into an S-coil and froze. At 1455 hrs we found C. molossus #1 under the south edge of a big juniper ~40-50m ESE of the corner telephone pole, in a tight flat coil under grass; tail not visible, no response.