Sidewinder. Should be C. cerastes cerastes in our area, but the tail coloring is what I would expect for C. cerastes laterorepens.
Observed wandering through desert scrub at 23:07. SVL approximately 61cm.
Observed alive on paved road at 20:26. Approximately 25.4cm SVL. No photo.
Observed alive on paved road at 20:26. Approximately 45.7cm SVL.
Observed alive on paved road. Approximately 45.7cm SVL. No photo.
Observed alive on paved road at 01:01. Approximately 30.5cm SVL. No photo.
Neonate dead on paved road - fresh (observed muscle spasms). Correct observation date and time: August 12, 2009, 21:42 (camera glitch caused incorrect image date and time stamp).
Found coiled under rock in loose sand. Approximately 23.0cm SVL. creosote scrub.
Crotalus cerastes is a venomous pit viper species belonging to the genus Crotalus (rattlesnakes) and found in the desert regions of the southwestern United States and northwestern Mexico. Three subspecies are currently recognized, including the nominate subspecies described here.