Blue Mountains Tree Frog

Blue Mountains Tree Frog

Ranoidea citropa

Silhouette: Vijay Karthick · PhyloPic

Daily sighting probability ~10% · With luck
at Royal National Park

In 3 days ~30% in a week ~50%

19 Verified sightings at Royal National Park From 2019 to 2026
81 In all 2 parks
September Best month
🌙 Nocturnal When it's spotted

About the Blue Mountains Tree Frog

The Blue Mountains tree frog (Dryopsophus citropa) also called the variegated river tree frog is a species of tree frog in the family Pelodryadidae. It is endemic to southeastern Australia and is found in eastern Victoria and in southeastern New South Wales. The Jenolan Caves tree frog, a population formerly separated as Litoria jenolanensis, is nowadays included in this species.

This is a moderate-sized frog, up to about 60 mm (2.4 in) in length. Its dorsal surface is brown with a few darker flecks. There is a dark stripe that runs from the nostril, above the tympanum, to the groin. There is a lighter golden stripe above and adjacent to the dark stripe. Their head, arms, legs, and the side of their body are green in colour. The amount of green on an individual frog can range from almost none at all to an all green colour morph. The green colour can occasionally be aqua-green. The armpit, thigh, groin, and inner section of the foot are bright red-orange in colour. The belly is white.

This species is associated with flowing rocky streams in woodland and wet or dry sclerophyll forest. This species has a two-part call, the first is a strong... Wikipedia →

Sounds

Recording0:33

Australia · 2021

© wild_matt · iNaturalist · CC BY-NC 4.0

Recording0:31

Australia · 2022

© Matt Clancy · iNaturalist · CC BY-NC 4.0

Recording0:06

Australia · 2024

© mirv · iNaturalist · CC BY-NC 4.0

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Blue Mountains National Park 🇦🇺 Australia
~20%
2 Royal National Park 🇦🇺 Australia
~10%

Zoos & Centres Where Found

# Zoo / Centre Country
1 Melbourne Aquarium 🇦🇺 Australia In captivity

Before you go

What are the chances of seeing a Blue Mountains Tree Frog in Royal National Park?

With luck

About 10% of wildlife watchers report a Blue Mountains Tree Frog sighting in Royal National Park on a given day, based on 19 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 9th most-seen of the 9 amphibians we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.

When is the best time to see a Blue Mountains Tree Frog in Royal National Park?

September

In that month about 40% of wildlife watchers report a Blue Mountains Tree Frog in Royal National Park on a given day, against under 5% in January–July and October, the lowest months.

What time of day is best to see a Blue Mountains Tree Frog?

Between 8 and 11 pm

Across all the parks we cover, that three-hour window holds the most Blue Mountains Tree Frog 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.

Is Royal National Park the best place to see a Blue Mountains Tree Frog?

2nd of 2

Of the 2 parks where we can rate Blue Mountains Tree Frog sightings, Royal National Park ranks 2nd at about 10%. The best odds are in Blue Mountains National Park (Australia, about 20%).

Where does the Blue Mountains Tree Frog sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Blue Mountains Tree Frog is recorded against all the amphibians logged in Royal National Park (19 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.

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