American Toad

Anaxyrus americanus

The American toad is a common species of toad found throughout the eastern half of Canada and the United States. It is divided into three subspecies: the eastern American toad, the dwarf American toad and the rare Hudson Bay toad. Taxonomic treatments in 2006 placed this species in the genus Anaxyrus instead of Bufo. Source

Where it is now

In the last 8 weeks this frog or toad was recorded 12,269 times across 17 areas (each area is a 5 degree square).

See the American Toad on the live map

Movement and weather

Each season it is first heard regularly where daytime highs are around 21°C (typically 19 to 23°C, from 5 areas).

Over the weeks it was present in the past year, its centre in North America ranged from 38°N in September to 47°N in June, about 1,000 km apart.

Arrival dates

The week it was first heard regularly in each region, after at least six weeks away. Dates differ from south to north, so a region has a range.

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Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.