Western (Boreal) Toad

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  • Wyoming’s Amphibians 

    • Northern Leopard Frog (Lithobates pipiens)

    • Wood Frog (Lithobates sylvaticus)

    • Columbia Spotted Frog (Rana luteiventris)

    • Boreal Chorus Frog (Pseudacris maculata)

    • American Bullfrog (Lithobates catesbeianus)

    • Wyoming Toad (Anaxyrus baxteri)

    • Western (Boreal) Toad (Anaxyrus boreas)

    • Rocky Mountain (Woodhouse’s) Toad (Anaxyrus woodhousii)

    • Great Plains Toad (Anaxyrus cognatus)

    • Plains Spadefoot (Spea bombifrons)

    • Great Basin Spadefoot (Spea intermontana)

    • Western Tiger Salamander (Ambystoma mavortium)

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IDENTIFICATION

• Size: ~3/4 inch (metamorph) to ~4.5 inches (adult)
• Dorsal color: light olive to dark brown
• Dark raised warts
• White dorsal stripe
• Ventral color: white with black spots
• No cranial crest
• Mp3 of call (courtesy of Gary Nafis, californiaherps.com; contact Gary for permission to post on other websites)

Photo by Weinmann

 

EGGS & TADPOLES

• Egg strings with lots of jelly, usually wrapped around vegetation
• Tadpole eyes are medial
• Uniformly dark black tadpoles with anal vent on midline

      

Photo by Ochsenfeld

 

BREEDING HABITAT

Shallow water in ponds, flooded meadows, and slow or moving pooled water on the edge of streams.

Photo by Wendy Estes-Zumpf

 

NATIVE RANGE

Map by Wyoming Natural Diversity Database