Jerdon's Bullfrog
Jerdon's BullfrogJerdon's BullfrogJerdon's BullfrogJerdon's Bullfrog

Jerdon's Bullfrog

Hoplobatrachus crassus

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
20–30% · Possible
overall probability at Wilpattu National Park
8 Verified records at Wilpattu National Park
May Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

Hoplobatrachus crassus, also called Jerdon's bullfrog, Jerdon's bull frog, and South Indian bullfrog, is a species of frog found widely distributed on the plains of India, Bangladesh, Nepal, and Sri Lanka. Its range may extend to the adjacent Bhutan and Myanmar. Wikipedia →

20–30% of wildlife watchers report a Jerdon's Bullfrog sighting in Wilpattu National Park, based on 8 days of visitor records from GBIF citizen-science data.

Closest Relatives at Wilpattu National Park

Common skittering frog
LC

Common skittering frog

☀️ Diurnal Amphibian

Euphlyctis cyanophlyctis

40–50% · Likely
Indian Five-Fingered Frog

Indian Five-Fingered Frog

🌅 Crepuscular Amphibian

Euphlyctis hexadactylus

30–40% · Possible
Common Indian Cricket Frog
LC

Common Indian Cricket Frog

☀️ Diurnal Amphibian

Minervarya agricola

20–30% · Possible
Hill Cricket Frog
LC

Hill Cricket Frog

Amphibian

Minervarya syhadrensis

Insufficient data
Chunam Tree Frog
LC

Chunam Tree Frog

🌅 Crepuscular Amphibian

Polypedates maculatus

40–50% · Likely
Rohan's Globular Frog
LC

Rohan's Globular Frog

🌅 Crepuscular Amphibian

Uperodon rohani

30–40% · Possible
Common Hourglass Tree Frog
LC

Common Hourglass Tree Frog

☀️ Diurnal Amphibian

Polypedates cruciger

20–30% · Possible
Common Indian Toad
LC

Common Indian Toad

☀️ Diurnal Amphibian

Duttaphrynus melanostictus

Insufficient data
Sri Lanka wood frog

Sri Lanka wood frog

☀️ Diurnal Amphibian

Hydrophylax gracilis

20–30% · Possible
Sri Lankan Bullfrog
LC

Sri Lankan Bullfrog

🌅 Crepuscular Amphibian

Uperodon taprobanicus

10–20% · With luck
Ornate Narrow-mouthed Toad
LC

Ornate Narrow-mouthed Toad

Amphibian

Microhyla ornata

Insufficient data
Schneider's Toad
LC Endemic

Schneider's Toad

Amphibian

Duttaphrynus scaber

Insufficient data

📅 Monthly Probability

20–30
Jan
10–20
Feb
<5
Mar
20–30
Apr
40–50
May
5–10
Jun
10–20
Jul
<5
Aug
<5
Sep
40–50
Oct
<5
Nov
30–40
Dec

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙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 Horton Plains National Park 🇱🇰 Sri Lanka
30–40%
2 Wilpattu National Park 🇱🇰 Sri Lanka
20–30%
3 Yala National Park 🇱🇰 Sri Lanka
10–20%
4 Minneriya National Park 🇱🇰 Sri Lanka
Insufficient data
5 Sinharaja Forest Reserve 🇱🇰 Sri Lanka
Insufficient data

Quick answers

What are the chances of seeing a Jerdon's Bullfrog in Wilpattu National Park?

About 21% of wildlife watchers report a Jerdon's Bullfrog sighting in Wilpattu National Park, based on 8 days of visitor records from GBIF citizen-science data.

When is the best time to see Jerdon's Bullfrog in Wilpattu National Park?

May has the highest sighting rate for Jerdon's Bullfrog in Wilpattu National Park in our monthly data.

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