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Reptiles › Vipers

Western Rattlesnake

Crotalus oreganus

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Wildlife study photograph from iNaturalist.
(c) will_k, some rights reserved (CC BY-NC)

28 photos

Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.

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Easily confused with

Study checks a spoken answer against these, and tells you which one you named.

Where it is recorded

Records by month in California.January 1,817, February 1,572, March 1,637, April 2,031, May 1,972, June 1,451, July 1,243, August 1,266, September 1,606, October 1,641, November 2,110, December 1,626.
United States27,441
California19,970
Nevada2,183
Utah1,938
Washington1,258
Canada1,117
Oregon1,063
Idaho687
British Columbia629
Alberta488

Counts show where people looked, not only where it lives.

Traits

Behavioral

  • CarnivoreEats other animals or animal-derived prey as a major part of its diet.Inferred from its group

Practical

  • VenomousProduces venom for defense or huntingChecked by the maintainer

Group and habits

  • PredatorDescends from an animal lineage whose members commonly hunt other animals.Inferred from its group

Classification

KingdomAnimals · Animalia
PhylumChordates · Chordata
ClassReptiles · Reptilia
OrderSnakes and Lizards · Squamata
FamilyVipers · Viperidae
GenusRattlesnakes · Crotalus

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Sources

Remember the name next time.

Practise Western Rattlesnake with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.

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