Definition of American toad
: a large common toad (Bufo americanus) of the eastern U.S. and Canada that has brown to reddish-brown skin with areas of olive or gray, dark spots each containing one or two warts, and often a light strip down the middle of the back The American toad breeds in March and April. Its song is a long, pleasant musical trill.— John Manuel, Aububon, July–August 1998
Note: There are two subspecies of American toad, the Eastern American toad (Bufo americanus americanus) and the dwarf American toad (B. a. charlesmithi).
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