Chelodina oblonga
In 3 days ~70% in a week ~90%
The oblong turtle (Chelodina oblonga), also known commonly as the narrow-breasted snake-necked turtle, southwestern snake-necked turtle, (western) long-neck(ed) turtle, and as yaakan or booyi in Noongar language, is a species of turtle in the family Chelidae. The species is endemic to the southwestern part of Western Australia.
The species has been successfully bred in captivity in Cologne Zoological Garden, and the estimated life span is 30-40 years. While all turtles are popularly believed to be mute, the oblong turtle is known to have a wide range of vocalizations.
Oblong turtles usually have a carapace length of under 30 cm, but have been recorded with a carapace length of up to 40 cm. Hatchlings will have a carapace length of 30 mm. The natural distribution of the oblong turtle is southwestern Australia, from the Fitzgerald River National Park in the south-eastern edge of the distribution, up to Jurien Bay (Hill River) in the north. There is also a suspected introduced population around Geraldton, another 170 km north of Jurien Bay.
The oblong turtle lives in a wide range of freshwater habitats, including wetlands, lakes and rivers... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Perth | 🇦🇺 Australia |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Zoo Samara | 🇷🇺 Russia | |
| 2 | Tennessee Aquarium | 🇺🇸 United States |
No species of the same family or order lives in Perth, so these are its closest relatives here: other reptiles.
Possible
About 30% of wildlife watchers report a Southwestern Snake-necked Turtle sighting in Perth on a given day, based on 275 verified sightings from GBIF citizen-science data. It is the 4th most-seen of the 23 reptiles we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
October
In that month about 50% of wildlife watchers report a Southwestern Snake-necked Turtle in Perth on a given day, against about 20% in May to July, the lowest months. That is one of Perth's driest months, with about 30 mm of rain against 130 mm in July.
Only Perth, in our data
Perth is the only city on Wallace's Line with enough records to rate Southwestern Snake-necked Turtle sightings: about 30% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Southwestern Snake-necked Turtle is recorded against all the reptiles logged in Perth (275 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.
