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 |
Possible
About 20% of wildlife watchers report a Giant Toad sighting in Porto on a given day, based on 74 verified sightings from GBIF citizen-science data. It is the 4th most-seen of the 7 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.
March and May–November
In those months about 20% of wildlife watchers report a Giant Toad in Porto on a given day, against under 5% in February and December, 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.
Yes
Of the 3 cities where we can rate Giant Toad sightings, Porto has the highest daily chance: about 20%. Next come Barcelona (Spain, under 5%) and Lisbon (Portugal, under 5%).
Same order: Anura
The closest relatives of the Giant Toad that you can see in Porto (order Anura, Frogs and Toads) are Iberian Green Frog (about 30%), Common Midwife Toad (about 20%) and Iberian Frog (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Giant Toad is recorded against all the amphibians logged in Porto (74 verified sightings), 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.
