Iberolacerta cyreni
Silhouette: Gustav Mützel · PhyloPic
In 3 days ~60% in a week ~90%
Iberolacerta cyreni, commonly known as the Cyren's rock lizard, is a species of lizard in the family Lacertidae. The species is endemic to central Spain and is currently listed as endangered by the IUCN due to global warming. I. cyreni has evolved to exhibit key behavioral characteristics, namely individual recognition, in which a lizard is able to identify another organism of the same species, as well as thermoregulation.
The genus name, "Iberolacerta," signifies how these lizards are native to Spain, which is located on the Iberian peninsula. The specific name, "cyreni," is in honor of Swedish herpetologist Carl August Otto Cyrén. Iberolacerta cyreni, or the rock lizard, can measure up to 8 cm (3.1 in) snout-to-vent and 24 cm (9.4 in) including the tail. I. cyreni are most likely species where males compete over females; in such cases, bigger lizards demonstrate greater reproductive success, thus resulting in overall larger body sizes and larger combat-related structures, such as the size of the head. In contrast, females are responsible for bearing offspring, and as a result, selection pressures that act on clutch volume or clutch size may favor... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra de Guadarrama National Park | 🇪🇸 Spain |
More parks will be added in future updates.
Possible
About 30% of wildlife watchers report a Cyren’s Rock Lizard sighting in Sierra de Guadarrama National Park on a given day, based on 237 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 4th most-seen of the 18 reptiles 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.
May to July
In those months about 40% of wildlife watchers report a Cyren’s Rock Lizard in Sierra de Guadarrama National Park on a given day, against under 5% in October to March, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Cyren’s Rock Lizard sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Sierra de Guadarrama National Park, in our data
Sierra de Guadarrama National Park is the only park on Wallace's Line with enough records to rate Cyren’s Rock Lizard sightings: about 30% of wildlife watchers there report one on a given day.
Same family: Lacertidae
The closest relatives of the Cyren’s Rock Lizard that you can see in Sierra de Guadarrama National Park (family Lacertidae, Wall Lizards) are Guadarrama Wall Lizard (about 40%), Large Psammodromus (about 30%) and Common Wall Lizard (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Cyren’s Rock Lizard is recorded against all the reptiles logged in Sierra de Guadarrama National Park (237 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.
