Length 2 – 3 in. (5-7.5 cm). This toad was named in honor of S. P. Fowler, an early naturalist from Massachusetts. It appears to be very similar to the American Toad, but there are several differences. Fowler’s Toads have a single dark spot on the chest and belly while the chest and belly of the American Toad is usually spotted with a dark pigment. There are no greatly enlarged warts on the thighs of a Fowler’s Toad as there are on the American Toad. The Fowler’s song is an unmusical nasal w-a-a-a-h lasting from one to four seconds. The American Toad’s song is a high- pitched musical trill lasting from six to 30 seconds. As with the American Toad, Fowler’s Toads range throughout the state, but seem to prefer a more sandy habitat than do American Toads. The matter is further complicated because the two toads may cross-breed with each other.
Text courtesy of the Ohio Division of Wildlife: https://wildlife.ohiodnr.gov/portals/wildlife/pdfs/publications/id%20guides/pub348.pdf