Western rattlesnake

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Western Rattlesnake
Pediocactus nigrispinus fh 10 OR B cropped Crotalus-oreganus-oreganus.jpg
Scientific classification
C. Oreganus
Binomial name
Crotalus oreganus
Holbrook, 1840
Crotalus oreganus distribution (RDB).png

The Western Rattlesnake (Crotalus Oreganus) is a species of venomous Pit viper. There are currently six subspecies recognized, not including the nominate subspecies.

Description[change | change source]

The Western Rattlesnake is a large species of the Crotalus.They can reach to the size of 100 centimeters (39 in) in length, but the longest ever found was the size of 162.6 centimeters (64 in). They are usually dark brown, dark gray, or olive brown in color, covered with dark blotches and uneven white edges.

Feeding[change | change source]

The Western Rattlesnake eats mainly rodents like the mouse, the rat, and the squirrel, but it also eats rabbits and small birds.

Common Names[change | change source]

Some of the Western Rattlesnakes names included the "Northern Pacific Rattlesnake", the "Black Diamond Rattlesnake", the "Arizona Diamond Rattlesnake", the "California Rattlesnake", the "Hallowell's Rattlesnake",and the "Oregon Rattlesnake".

Where they live[change | change source]

The Western Rattlesnake is found in North America, from southwestern Canada, western U.S.A, and northern Mexico.In Canada it is found in southern British Columbia. In the U.S.A it is found in Washington, Oregon, western and southern Idaho, California, Nevada, Utah, and Arizona. In northern Mexico it is found in western Baja California.

Subspecies[change | change source]

Sources[change | change source]

  1. Hammerson, G.A., Frost, D.R. & Hollingsworth, B. (2007). "Crotalus Oreganus". IUCN Red List of Threatened Species. Version 2013.1. International Union for Conservation of Nature. Retrieved 26 November 2013.CS1 maint: multiple names: authors list (link)

Other websites[change | change source]