Incilius nebulifer
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~60% in a week ~90%
Incilius nebulifer, also known as the coastal plains toad or Gulf coast toad, is a species of toad in the family Bufonidae. It is found on the coast of Gulf of Mexico from Veracruz in Mexico to Mississippi in the United States. It was removed from the synonymy of Incilius valliceps in 2000.
It occurs in a wide range of habitats, both natural and human-altered: coastal prairies, barrier beaches, towns, etc. Breeding takes place in various kinds of pools, including roadside and irrigation ditches. This widespread and common toad is not threatened. Wikipedia →
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United States · 2013
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United States · 2024
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United States · 2026
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| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cumbres de Monterrey National Park | 🇲🇽 Mexico | |
| 2 | Padre Island National Seashore | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Austin | 🇺🇸 United States | |
| 2 | Houston | 🇺🇸 United States | |
| 3 | San Antonio | 🇺🇸 United States | |
| 4 | Dallas | 🇺🇸 United States | |
| 5 | Monterrey | 🇲🇽 México |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Gladys Porter Zoo | 🇺🇸 United States | |
| 2 | Entopia | 🇲🇾 Malaysia | |
| 3 | Dallas World Aquarium | 🇺🇸 United States |
Possible
About 20% of wildlife watchers report a Gulf Coast Toad sighting in Cumbres de Monterrey National Park on a given day, based on 130 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 2nd most-seen of the 10 amphibians we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
August and October
In those months about 40% of wildlife watchers report a Gulf Coast Toad in Cumbres de Monterrey National Park on a given day, against about 10% in April and December–February, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Gulf Coast Toad sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Yes
Of the 2 parks where we can rate Gulf Coast Toad sightings, Cumbres de Monterrey National Park has the highest daily chance: about 20%. Next come Padre Island National Seashore (United States, about 10%).
Same family: Bufonidae
The closest relatives of the Gulf Coast Toad that you can see in Cumbres de Monterrey National Park (family Bufonidae, True Toads) are Giant Marine Toad (about 10%) and Red-spotted Toad (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Gulf Coast Toad is recorded against all the amphibians logged in Cumbres de Monterrey National Park (130 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
