Rock Rattlesnake (Crotalus lepidus)
The Rock Rattlesnake, or the Banded Rock Rattlesnake, is a small pit viper in the southwestern United States and northern Mexico. Its body has a pinkish-brown to dark-gray color that allows it to blend in with the surroundings.
It preys on small mammals, lizards, birds, and amphibians at night. This ovoviviparous species gives birth to 2 to 8 offspring at a time, usually in late summer or early fall.
Despite its venom, it usually does not pose a threat to humans unless it feels threatened.
Image of the Rock Pigeon | Celebrate Urban Birds
A common sight in cities around the world, Rock Pigeons crowd streets and public squares, living on discarded food and offerings of birdseed. In addition to the typical blue-gray bird with two dark wingbars, you'll often see flocks with plain, spotted, pale, or rusty-red birds in them. Introduced to North America from Europe in the early 1600s, city pigeons nest on buildings and window ledges. In the countryside they also nest on barns and grain towers, under bridges, and on natural cliffs.
Best of the Rock Pigeon Identification, All About Birds, Cornell Lab of Ornithology
Plump bird with small head and straight, thin bill. Plumage is variable, but most common form has gray back, 2 black bars in the wing, and blue-gray head.
Larger and plumper than a Mourning Dove, Rock Pigeons are tubby birds with small heads and short legs. Their wings are broad but pointed wings and the tail is wide and rounded.
