Tiger Rattlesnake
Crotalus tigris

f16 @ 1/200s, ISO:800, Nikon D3S w 300mm

"Tiger Rattlesnake," Wikipedia, the free encyclopedia. The tiger rattlesnake, is a highly venomous pit viper species found in the southwestern United States and northwestern Mexico. The tiger rattlesnake is easily identified by its small, spade-shaped head, which is about 1/25 of its total body length. It has the smallest head of any rattlesnake, and a large rattle. The color pattern consists of a gray, lavender, blue-gray, pink, or buff ground color that usually turns to pink, pale orange, or cream on the sides. Although it has a comparatively low venom yield, its toxicity is considered to be the second highest of all rattlesnake venoms (next to the mojave), and the third highest of all snakes in the Western Hemisphere.
Green Valley, Sierra Vista, Arizona