Pseudophryne australis
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~10% in a week ~30%
The red-crowned toadlet (Pseudophryne australis) is a species of Australian ground frog, restricted to the Sydney Basin, New South Wales. It is only found around sandstone escarpment areas around Sydney, from Ourimbah in the north, Nowra to the south and the Blue Mountains areas to the west.
This is a small species of frog, reaching 30 mm in length. It is characterised by the red T-shaped mark on its head. It is dark brown or black above with a red wash or spots over its back, and a red mark near the vent. The sides are a blue-grey and there is a white mark in the armpits and thighs. The ventral surface is very strongly marbled black and white, with a bluish colour in some areas between the black and white.
This species is only found around temporary creeks and soaks in sandstone habitats in woodland, heathland and dry sclerophyll forest around the Sydney basin. Males make an ark call from nest sites under leaf litter and rocks, in areas likely to be inundated, generally only after heavy rain. Eggs are laid under leaf litter and tadpoles begin developing inside the egg, the males stays with the eggs in the nest. Once heavy rain floods the... Wikipedia →
Recording0:08
Australia · 2021
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Australia · 2026
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Australia · 2023
© Jono Dashper · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Royal National Park | 🇦🇺 Australia | |
| 2 | Blue Mountains National Park | 🇦🇺 Australia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sydney | 🇦🇺 Australia |
Rare
Under 5% of wildlife watchers report a Red-crowned Toadlet sighting in Sydney on a given day, based on 31 verified sightings from GBIF citizen-science data. It is the 8th most-seen of the 8 amphibians we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
June, August and December–January
In those months about 10% of wildlife watchers report a Red-crowned Toadlet in Sydney on a given day, against under 5% in February–May, July and September–November, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Red-crowned Toadlet sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is seen both by day and at night.
Only Sydney, in our data
Sydney is the only city on Wallace's Line with enough records to rate Red-crowned Toadlet sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Red-crowned Toadlet is recorded against all the amphibians logged in Sydney (31 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.
