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threatened and/or endangered

Canadian Toad Bufo hemiophrys

 

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Canadian Toad
credit: ceasol/CCSA

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Family: Bufonidae, Toads view all from this family



Description Females larger than males. Brown, marked on the back with a median yellowish line, 2-3 rows of brown spots on each side.


Dimensions 5.1-8.3cm. (2-3 1/4")


Warning Toads have enlarged glands (called the paratoid glands) on the side of the neck, one behind each eye. These glands secrete a viscous white poison that gets smeared in the mouth of any would-be predator, inflaming the mouth and throat and causing nausea, irregular heart beat, and, in extreme cases, death. Toads pose a danger to pets, which may pounce on and bite them. Humans should take care to wash their hands after handling a toad, and to avoid touching the mouth or eyes until having done so.


Voice Low-pitches trill. 15-20 second intervals.


Breeding March-September. Shallow water edges of ponds and lakes.


Habitat Pond, lake & pothole margins.


Range Machenzie through Alberta & n. Montana. South Dakota though Manitoba, Minnesota.


Discussion If threatened dives underwater. Uses tubercles on hind feet to burrow, similar to spadefoot toad. Nocturnal.


 

 

 

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