The Western rattlesnake (Crotalus oreganus) is a venomous snake native to North America. It is one of three rattlesnake species found in Canada (a fourth is extirpated). Only one subspecies of Western rattlesnake, the Northern Pacific rattlesnake
(Crotalus oreganus oreganus), is found here. In Canada, Western rattlesnakes are only found in British Columbia.
They are active from April to October, hibernating the rest of the year. Western rattlesnakes face many threats including habitat loss and fragmentation, road mortality, and persecution from humans.