Diplodactylus bilybara
Silhouette: Beth Reinke · PhyloPic
In 3 days ~40% in a week ~70%
Diplodactylus bilybara, sometimes called the western fat-tailed gecko, is a gecko endemic to Australia. This gecko can be found in Western Australia along the central west coast. The species average length is 6.3 cm or 2.48 inches. These are generally reddish brown or grey. Their reproduction is oviparous. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Ningaloo Marine Park | 🇦🇺 Australia |
More parks will be added in future updates.
Possible
About 20% of wildlife watchers report a Western Fat-tailed Gecko sighting in Ningaloo Marine Park on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 17th most-seen of the 29 reptiles 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.
December to February
In those months about 30% of wildlife watchers report a Western Fat-tailed Gecko in Ningaloo Marine Park on a given day, against under 5% in June–August and November, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Western Fat-tailed Gecko sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Ningaloo Marine Park, in our data
Ningaloo Marine Park is the only park on Wallace's Line with enough records to rate Western Fat-tailed Gecko sightings: about 20% of wildlife watchers there report one on a given day.
Same family: Diplodactylidae
The closest relatives of the Western Fat-tailed Gecko that you can see in Ningaloo Marine Park (family Diplodactylidae, Australasian Geckos) are Northern Spiny-tailed Gecko (about 30%), Western Spiny-tailed Gecko (about 20%) and Pilbara Ground Gecko (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Western Fat-tailed Gecko is recorded against all the reptiles logged in Ningaloo Marine Park (10 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.
