Species:

Anaxyrus boreas

Western Toad

Notes on this species:
The genus Anaxyrus was split from Bufo by Frost et al in 2006. Most references still use the long-established Bufo.
Subspecies I've seen:
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Boreal Toad
A. b. boreas
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Southern California Toad
A. b. halophilus
Subspecies:

Anaxyrus boreas boreas

Boreal Toad

July 23, 2001
Gold Bluffs Beach, Prairie Creek Redwoods State Park, Humboldt County, California
Boreal Toad (Anaxyrus boreas boreas)
Boreal Toad (Anaxyrus boreas boreas)
We happened to visit this area right in the middle of the annual toadlet frenzy, when zillions of toad tadpoles were turning into tiny little hoppers. The ground was crawling with little toadlets; you had to wait several seconds before putting each foot all the way down to avoid stomping them.
August 3, 2001
Crane Prairie Reservoir, Deschutes County, Oregon
Boreal Toad (Anaxyrus boreas boreas)
This is a pure, refined example of toadiness at its best.
Subspecies:

Anaxyrus boreas halophilus

Southern California Toad

May 17, 1998
Garland Ranch Regional Park, Monterey County, California
Southern California Toad (Anaxyrus boreas halophilus)
This is just a tiny metamorph; a few days earlier it was a tadpole.
September 8, 2006
Nine Mile Canyon Road, Tulare County, California
Southern California Toad (Anaxyrus boreas halophilus)
Southern California Toad (Anaxyrus boreas halophilus)
My friend Fred Harer, his wife Angie, his mom Lipa, and I went out for a night drive starting up at Kennedy Meadows in the Eastern Sierra and ending up down near Pearsonville in the Mojave desert. The only herps on the road at night up in the mountains were a good number of these lovely toads. (Not too much going on down in the desert either, but Fred did end up finding two baby sidewinders.