Rock Squirrel
Otospermophilus variegatus

f5.6 @ 1/6400s, ISO:800, Nikon D3S w 500mm

"Rock Squirrel," Wikipedia, the free encyclopedia. The rock squirrel is a species of rodent in the family Sciuridae and is native to Mexico and the southwestern United States. Rock squirrels are one of the largest members of the family Sciuridae, with adults measuring up to 21 inches (53 cm) in length. In front and on top, the squirrel's coat is a speckled grayish brown; on the rear and bottom the gray becomes a more mottled brownish-black tone. They have a marked light-colored ring around their eyes and pointed ears that project well above their heads. Rock squirrels have a long bushy tail with white edges.
Madera Canyon, Green Valley, Arizona