Western Rattlesnake

(Crotalus oreganus)

The western rattlesnake is found throughout Oregon, with the exception of the Coast and Cascade mountain ranges.

It is generally a heavy-bodied snake with large dark spots, a wide triangular head, a distinct eye stripe, and a rattle at the tip of the tail. It averages 31 inches in length.

Diet and habitat
It consumes mice, gophers, squirrels, rabbits, birds, lizards and amphibians. It requires rocks, cliffs and down logs for cover, and south-facing rocky dens that provide access to over-wintering sites.

Predators and threats
It is preyed upon by other snakes, carnivorous mammals and raptors. Local populations are threatened by habitat loss due to various forms of human development.

They breed every other fall after emerging from hibernation. Females produce three to 12 live young.


9755 SW Barnes Rd., Suite 210        
Portland, OR 97225        
Phone: 971-673-2944        
Fax: 971-673-2946

twitter youtube facebook linkedin

Related Websites