Litoria verreauxii
Silhouette: Robbi Bishop-Taylor · PhyloPic
In 3 days ~10% in a week ~20%
The whistling tree frog (Rawlinsonia verreauxii), or Verreaux's tree frog, is a species of frog found in Australia. The alpine tree frog is restricted to the southern alps of New South Wales and Victoria. Verreaux's tree frog is widespread throughout south-eastern Queensland, coastal and highland regions of New South Wales, and south-eastern Victoria.
Rawlinsonia verreauxii verreauxii is widespread and common across eastern Australia. R. v. alpina, though, has a very restricted range and has suffered significant declines in population; it is currently listed as endangered.
The whistling tree frog is one of the classic examples of speciation by reinforcement. Future research into congener hybridisation and gene flow may find such occurring, and may find countervailing reinforcement mechanisms at work.
R. v. verreauxii is light brown to red brown above, with an often indistinct, broad, darker patch starting between the eyes and continuing over the back. A dark band starting at the... Wikipedia →
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| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kosciuszko National Park | 🇦🇺 Australia | |
| 2 | Blue Mountains National Park | 🇦🇺 Australia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Melbourne | 🇦🇺 Australia |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Healesville Sanctuary | 🇦🇺 Australia | |
| 2 | Melbourne Zoo | 🇦🇺 Australia |
Rare
Under 5% of wildlife watchers report a Verreaux's Tree Frog sighting in Melbourne on a given day, based on 17 verified sightings from GBIF citizen-science data. It is the 8th most-seen of the 9 amphibians we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Verreaux's Tree Frog in Melbourne on a given day, so our monthly data shows no clear season.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Verreaux's Tree Frog 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.
Only Melbourne, in our data
Melbourne is the only city on Wallace's Line with enough records to rate Verreaux's Tree Frog sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Verreaux's Tree Frog is recorded against all the amphibians logged in Melbourne (17 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.
