Reptile · GBIF taxon 2444446
Western Rattlesnake
Crotalus oreganusAlso known as Northern Pacific Rattlesnake, Oregon Rattlesnake, Western Pit Viper
Western rattlesnakes are highly adaptable pit vipers that navigate diverse terrains from dry sagebrush deserts to cool mountain forests. They rely on heat-sensing facial pits to locate warm-blooded prey in total darkness, striking with remarkable precision. During the cold winter months, these social reptiles gather in communal dens, occasionally sharing winter quarters with other snake species.
VenomousCamouflagedCrepuscular
- diet
- Small mammals, birds, lizards, and amphibians
- family
- Viperidae
- threats
- Habitat fragmentation, road mortality, and intentional killing by humans
- life Span
- 15 to 20 years in the wild
LC
Possesses potent hemotoxic venom; maintain a distance of at least fifteen feet and never attempt to handle.
Venom is primarily hemotoxic, destroying red blood cells and tissue, which causes severe swelling, pain, and systemic damage.
Never attempt to touch, capture, or kill the snake; back away slowly and give it a clear escape route.- Listen closely: The dry, buzzing rattle is a clear warning to back away immediately.
- Watch your step: Use a flashlight at night and avoid placing hands or feet in rocky crevices.
- Give them space: If encountered on a trail, freeze, locate the snake, and slowly back away.