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Cabeza Prieta Natural History Association
Sonoran Desert Reptiles
Bufo cognatus (Great Plains toad)

 

 

Diet: moths, flies, beetles
Size: 2" to 4½"

Large with well-defined, pale-bordered dark blotches, in symmetrical pairs on its back. Cranial crests diverge widely toward rear and are more or less united on the snout to form a boss. Inner tubercle on each hind foot usually sharp-edged. Generally light brown, olive, or gray above, with dusky, olive or green blotches. Sometimes a narrow middorsal stripe. Whitish below, usually unspotted. Voice: Harsh explosive clatter resembling a jackhammer, lasting 5 - 50 more seconds, almost deafening when large numbers are heard at close range.


References

Excerpts from A FIELD GUIDE TO WESTERN REPTILES AND AMPHIBIANS, 3/e by Robert C. Stebbins. Copyright (c) 2003 by Robert C. Stebbins. Reproduced by permission of Houghton Mifflin Company. All rights reserved.

 

 

 

 

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Natural History of the Sonoran Desert and Refuge

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