Montane Brown Frog
Montane Brown FrogMontane Brown FrogMontane Brown FrogMontane Brown Frog

Montane Brown Frog

Rana ornativentris

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
10–20% · With luck
overall probability at Nikko National Park
5 Verified records at Nikko National Park
October Best month highest sighting rate
🌅 Crepuscular When it's active at dawn and dusk

The montane brown frog or Nikkō frog (Rana ornativentris) is a species of frog in the family Ranidae. It is endemic to Japan. Its natural habitats are subtropical or tropical dry forests, rivers, swamps, freshwater marshes, arable land, irrigated land, and seasonally flooded agricultural land. Wikipedia →

10–20% of wildlife watchers report a Montane Brown Frog sighting in Nikko National Park, based on 5 days of visitor records from GBIF citizen-science data.

Closest Relatives at Nikko National Park

Japanese Brown Frog
LC

Japanese Brown Frog

🌅 Crepuscular Amphibian

Rana japonica

20–30% · Possible
Tago's Brown Frog
LC

Tago's Brown Frog

Amphibian

Rana tagoi

Insufficient data
Daruma Pond Frog
LC

Daruma Pond Frog

🌅 Crepuscular Amphibian

Pelophylax porosus

30–40% · Possible
Black-spotted Frog
LC

Black-spotted Frog

Amphibian

Pelophylax nigromaculatus

Insufficient data
Proto wrinkled frog

Proto wrinkled frog

Amphibian

Glandirana reliquia

Insufficient data
Japanese Toad
LC

Japanese Toad

🌅 Crepuscular Amphibian

Bufo japonicus

40–50% · Likely
Forest Green Treefrog
LC

Forest Green Treefrog

🌅 Crepuscular Amphibian

Zhangixalus arboreus

20–30% · Possible
Schlegel's Green Tree Frog
LC

Schlegel's Green Tree Frog

🌅 Crepuscular Amphibian

Zhangixalus schlegelii

20–30% · Possible
Kajika Frog
LC

Kajika Frog

🌅 Crepuscular Amphibian

Buergeria buergeri

10–20% · With luck

📅 Monthly Probability

5–10
Jan
5–10
Feb
5–10
Mar
<5
Apr
<5
May
20–30
Jun
20–30
Jul
20–30
Aug
5–10
Sep
30–40
Oct
30–40
Nov
10–20
Dec

🌅 When They're Spotted

Most active at dawn and dusk · across all parks (global)

🌅Crepuscular
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Nikko National Park 🇯🇵 Japan
10–20%

More parks will be added in future updates.

Quick answers

What are the chances of seeing a Montane Brown Frog in Nikko National Park?

About 19% of wildlife watchers report a Montane Brown Frog sighting in Nikko National Park, based on 5 days of visitor records from GBIF citizen-science data.

When is the best time to see Montane Brown Frog in Nikko National Park?

October has the highest sighting rate for Montane Brown Frog in Nikko National Park in our monthly data.

← Back to Nikko National Park