Reptiles of Great Sand Dunes National Park and Preserve
The 3 reptiles you can find at Great Sand Dunes National Park and Preserve, like the Bullsnake — sizes, diets, and whether you should worry.
-
Reptile Bullsnake
Pituophis catenifer sayi
A big, harmless snake that fakes being a rattlesnake — hissing, flattening its head, and shaking its tail in dry grass — to talk its way out of trouble.
-
Reptile Greater short-horned lizard
Phrynosoma hernandesi
A flat, spiky, dirt-colored lizard, sometimes called a horned toad, that can squirt blood from its eyes at a coyote and gives birth to live young.
-
Reptile Western terrestrial garter snake
Thamnophis elegans
A slim, striped snake found from stream banks to talus slopes across ten of these parks, and the most commonly seen reptile in several of them.