Aspidoscelis angusticeps
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~30% in a week ~60%
Aspidoscelis angusticeps, the Yucatán whiptail, is a species of teiid lizard found in Mexico, Guatemala, and Belize. Subspecies of Aspidoscelis angusticeps are: Aspidoscelis angusticeps petenensis (BEARGIE & MCCOY 1964) Aspidoscelis angusticeps angusticeps (COPE 1877) Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Ría Lagartos Biosphere Reserve | 🇲🇽 Mexico | |
| 2 | Celestún Biosphere Reserve | 🇲🇽 Mexico | |
| 3 | Sian Ka'an Biosphere Reserve | 🇲🇽 Mexico |
With luck
About 10% of wildlife watchers report a Yucatán Whiptail sighting in Sian Ka'an Biosphere Reserve on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 17th most-seen of the 23 reptiles we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
February–March, May–June and September–October
In those months about 20% of wildlife watchers report a Yucatán Whiptail in Sian Ka'an Biosphere Reserve on a given day, against under 5% in April, July–August and November–January, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Yucatán Whiptail sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 3
Of the 3 parks where we can rate Yucatán Whiptail sightings, Sian Ka'an Biosphere Reserve ranks 3rd at about 10%. The best odds are in Ría Lagartos Biosphere Reserve (Mexico, about 30%) and Celestún Biosphere Reserve (Mexico, about 10%).
GBIF citizen-science records
It is estimated from how often the Yucatán Whiptail is recorded against all the reptiles logged in Sian Ka'an Biosphere Reserve (7 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.
