Bufo spinosus
Silhouette: Steven Traver · PhyloPic
In 3 days ~40% in a week ~70%
The spiny toad, spiny common toad, or giant toad (Bufo spinosus) is a species of toad native to the Iberian Peninsula, southern France, extreme northwestern Italy, and North Africa (Morocco, Algeria, and Tunisia), with an isolated population in Jersey in the Channel Islands. For much of the 20th century, it was considered either a synonym or a subspecies of common toad Bufo bufo, but it is now classified as a separate species.
Adult males measure 58.6–112 mm (2.3–4.4 in) and adult females 65–180 mm (2.6–7.1 in) in snout–vent length. These toads feed on a number of invertebrates from earthworms to insects and woodlice. Wikipedia →
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| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Picos de Europa National Park | 🇪🇸 Spain | |
| 2 | Cévennes National Park | 🇫🇷 France | |
| 3 | Pyrénées National Park | 🇫🇷 France | |
| 4 | Aigüestortes National Park | 🇪🇸 Spain | |
| 5 | Ordesa y Monte Perdido National Park | 🇪🇸 Spain | |
| 6 | Monfragüe National Park | 🇪🇸 Spain | |
| 7 | Mercantour National Park | 🇫🇷 France | |
| 8 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 9 | Sierra de Guadarrama National Park | 🇪🇸 Spain |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Lisbon Oceanarium | 🇵🇹 Portugal | |
| 2 | Zoo La Barben | 🇫🇷 France | |
| 3 | Aquarium of Gijón | 🇪🇸 Spain | |
| 4 | Fluviário de Mora | 🇵🇹 Portugal |
With luck
About 10% of wildlife watchers report a Giant Toad sighting in Sierra de Guadarrama National Park on a given day, based on 52 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 5th most-seen of the 13 amphibians we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
April–June and August
In those months about 20% of wildlife watchers report a Giant Toad in Sierra de Guadarrama National Park on a given day, against under 5% in December to February, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Giant Toad sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
9th of 9
Of the 9 parks where we can rate Giant Toad sightings, Sierra de Guadarrama National Park ranks 9th at about 10%. The best odds are in Picos de Europa National Park (Spain, about 50%), Cévennes National Park (France, about 50%) and Pyrénées National Park (France, about 50%). All parks ranked.
GBIF citizen-science records
It is estimated from how often the Giant Toad is recorded against all the amphibians logged in Sierra de Guadarrama National Park (52 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.
