Jerdon's Bullfrog

Jerdon's Bullfrog

Hoplobatrachus crassus

Silhouette: Jose Carlos Arenas-Monroy · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~20% · Possible
at Wilpattu National Park
10 Verified sightings at Wilpattu National Park From 2019 to 2026
30 Verified sightings across all 5 parks From 2019 to 2026
May Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Jerdon's Bullfrog

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.

This species has a shovel shaped metatarsal tubercle and has longer hind legs than the somewhat similar H. tigrinus with which it overlaps in part of its range. When the leg is stretched along the body the tibio-tarsal (ankle) joint lies at a position between the ear and eye. Females are slightly larger than males (about 8–10 cm or more while males are about 5–8 cm). The skin of the dorsum is olive green to yellow in color with brown or black spots. Some individuals have a yellow stripe down the spine.

Hoplobatrachus crassus is a terrestrial frog that lives in seasonally flooded dry grasslands, open plains and arid areas, also in cultivated areas and near human settlements. Adult frogs are often found in burrows. They may aestivate during dry periods. Breeding takes place in water. Males have two vocal sacs on the side and the call sounds somewhat like a bleating goat. The calls last... Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Horton Plains National Park 🇱🇰 Sri Lanka
~30%
2 Wilpattu National Park 🇱🇰 Sri Lanka
~20%
3 Yala National Park 🇱🇰 Sri Lanka
~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 20% of wildlife watchers report a Jerdon's Bullfrog sighting in Wilpattu National Park, based on 10 verified sightings 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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