Anaxyrus boreas
Western Toad, Boreal Toad (B. b. boreas), California Toad (B. b. halophilus)
family: Bufonidae

© 2020 William Flaxington (1 of 214)

Country distribution from AmphibiaWeb's database: Canada, Mexico, United States

U.S. state distribution from AmphibiaWeb's database: Alaska, California, Colorado, Idaho, Montana, New Mexico, Nevada, Oregon, Utah, Washington, Wyoming

Canadian province distribution from AmphibiaWeb's database: Alberta, British Columbia, Yukon

IUCN (Red List) status: Least Concern (LC).
For Red List information on this species, see the IUCN species account.


View distribution map in BerkeleyMapper.
View Bd and Bsal data (337 records).

It has been known to occasionally hybridize with the red-spotted toad (Anaxyrus punctatus) and the Canadian toad (Anaxyrus hemiophrys) (Stebbins 1985).

See other subspecies accounts at B. b. boreas and B. b. halophilus .

From Laura Blackburn, Priya Nanjappa, and Michael J. Lannoo (2001) US Amphibian Dist. Maps (

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Citation: AmphibiaWeb. 2020. <> University of California, Berkeley, CA, USA. Accessed 26 Oct 2020.

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