Overview: The Gangetic Wetland Crown of Jharkhand
Situated on the fertile floodplain of the River Ganga in Rajmahal subdivision of Sahibganj district in northeastern Jharkhand, Udhwa Lake Bird Sanctuary spans 5.65 square kilometers centered around two interconnected, crescent-shaped oxbow lakes: **Pataura Lake** (155 hectares) and **Berbhanga Lake** (410 hectares).
Formally notified in 1991 under the Wildlife (Protection) Act of 1972, Udhwa holds an exclusive state distinction: it is **Jharkhand's very first and only dedicated bird sanctuary**. Situated strategically along the **Central Asian Flyway**, the twin lakes provide vital feeding, roosting, and wintering habitat for thousands of long-distance trans-Himalayan migratory waterbirds traveling south from Siberia, Mongolia, and the Tibetan Plateau.
Backed by the ancient basaltic ridges of the **Rajmahal Hills** and connected during monsoons to the main stem of the Ganga River, Udhwa hosts diverse aquatic life including **Bar-headed Geese**, **Northern Pintails**, **Ferruginous Ducks**, **Asian Openbills**, **Bronze-winged Jacanas**, and the endangered **Gangetic River Dolphin** (*Platanista gangetica*) in nearby river channels.
Twin Oxbow Limnology & Wetland Habitat Zones
The two natural oxbow waterbodies exhibit distinct ecological characteristics:
Limnological Profile of Udhwa's Twin Lakes
| Waterbody |
Water Area |
Vegetation & Macrophytes |
Primary Avian Utilization |
| Pataura Lake |
155 Hectares |
Deep open water; submerged Hydrilla, Najas, and Potamogeton. |
Diving ducks (Pochards, Tufted Ducks), Great Cormorants, grebes. |
| Berbhanga Lake |
410 Hectares |
Shallow marsh; floating lotus (Nelumbo), water lilies, reeds (Typha). |
Dabbling ducks, Bar-headed Geese, Jacanas, Asian Openbill colonies. |
| Connecting Channel & Silt Flats |
Inter-lake wetland |
Riparian mudflats, alluvial silt bars, wild grasses, sedges. |
Waders (Snipes, Sandpipers, Plovers), Black-winged Stilts, herons. |
| Riparian Buffer Fringe |
Fringe plantations |
Semal, Kadamb, Jamun, Shisham, Babool. |
Canopy roosting and nesting for fishing eagles, storks, and egrets. |
During peak monsoon spates, the Ganga spills into the oxbow basins through natural drainage channels, flushing out organic silt, revitalizing dissolved oxygen levels, and stocking the lakes with indigenous fingerlings of carp, catfish, and freshwater prawns.
Avian Spectrum & Migratory Waterfowl
Between November and March, Udhwa transforms into a vibrant avian metropolis:
Bar-headed Goose
Anser indicus • High-Altitude Migrant
Flies over the high Himalayas from Central Asia, grazing on tender grasses along Berbhanga Lake's muddy margins.
Asian Openbill
Anastomus oscitans • Resident Wader
Nests in large heronries in shoreline Kadamb and Semal trees, using its specialized gaped beak to extract freshwater apple snails.
Ferruginous Duck
Aythya nyroca • Near Threatened Diver
Rich chestnut-brown diving duck foraging in the weed-rich deeper waters of Pataura Lake throughout winter.
Bronze-winged Jacana
Metopidius indicus • Lily Trotter
Trots deftly over floating lotus pads with elongated toes, hunting aquatic beetles, larvae, and tender shoots.
Osprey
Pandion haliaetus • Fish Eagle
Circles high above the lake surface before executing dramatic feet-first plunges to catch surface-swimming fish.
Greater Painted-Snipe
Rostratula benghalensis • Secretive Wader
Forages quietly among dense reedbeds and shallow mud pools along the connecting channel at dawn and dusk.
Other recorded waterfowl include the **Northern Pintail**, **Gadwall**, **Eurasian Wigeon**, **Garganey**, **Purple Swamphen**, **Black-necked Stork**, and **Great Crested Grebe**.
Rajmahal Heritage & Community Coexistence
Udhwa is steeped in regional history. Nearby stands the historic site of the **Battle of Udhwa Nala (1763)**, where British East India Company forces under Major John Adams defeated Nawab Mir Qasim of Bengal, securing British dominance over the Bengal-Bihar trade routes.
The surrounding wetland fringes are home to indigenous **Santhal** and **Paharia** tribal communities, alongside traditional traditional fisherfolk (*Mallahs*). The Jharkhand Forest Department has instituted community-based wetland management committees that regulate seasonal fishing mesh sizes, protect nesting trees from disturbance, and train local youths as certified ecotourism boat guides.
Annual waterbird censuses conducted by the Bombay Natural History Society (BNHS) in collaboration with local environmental clubs have documented over 100 species of resident and migratory birds, highlighting Udhwa's immense potential as an internationally recognized Ramsar wetland site.
During winter mornings, local birding clubs organize nature education camps for schoolchildren from Sahibganj and Rajmahal, instilling flyway stewardship and raising awareness against synthetic pesticide runoff into the oxbow lake catchments.
Visitor Experience, Boat Birdwatching & Practical Details
Udhwa offers peaceful, undisturbed boat birdwatching:
Safari Planning & Practical Details
- Best Visiting Months: November through March. Peak winter (December–February) provides highest concentrations of migratory waterfowl.
- Visiting Timings: 06:00 AM to 05:00 PM daily.
- Country Boat Excursions: Silent rowboats operated by local boatmen allow close, non-intrusive bird observation among the lotus beds.
- Watchtowers: Forest Department watchtowers on Pataura Lake embankment provide panoramic 360-degree views across the water spread and Rajmahal foothills.
How to Reach Udhwa Lake Bird Sanctuary
Barharwa and Sahibganj serve as convenient railway hubs:
Gateway Transit Routes
- From Barharwa Junction (Prime Railhead): Approx. 14 km northeast via Udhwa road (approx. 25 minutes by auto or taxi).
- From Sahibganj City (District HQ): Approx. 42 km southeast via Rajmahal road (approx. 1 hour).
- From Rajmahal (Historic Ganga Port): Approx. 15 km south via SH-18 (approx. 25 minutes).
- From Malda (West Bengal): Approx. 45 km west via Farakka Barrage route (approx. 1.2 hours).
- From Ranchi (State Capital): Approx. 390 km northeast via Dumka and Sahibganj (approx. 8 hours).
- By Train: Barharwa Junction (BHW) (~14 km) is a major junction on the Sahibganj Loop connecting direct express trains to Kolkata (Howrah/Sealdah), Delhi, Patna, and Guwahati.
- Nearest Airport: Kazi Nazrul Islam Airport Durgapur (RDP) (~195 km) and Bagdogra Airport (IXB) (~210 km).
Explore Sahibganj District — Holy Ganga, Rajmahal Fossils & Historic Forts
Udhwa Lake Bird Sanctuary is the ecological jewel of Santhal Parganas. Cruise along the holy River Ganga to spot endangered Gangetic Dolphins, explore the 140-million-year-old plant fossils at Rajmahal Hills Jurassic Park, and visit the historic Teliagarhi Fort and Moti Jharna waterfall.
View Sahibganj District Guide →
Frequently Asked Questions
What is Udhwa Lake Bird Sanctuary famous for?
Udhwa Lake Bird Sanctuary is famous as Jharkhand's only dedicated bird sanctuary, its twin Gangetic oxbow lakes (Pataura and Berbhanga), and wintering flocks of over 10,000 migratory waterfowl including Bar-headed Geese and Ferruginous Ducks.
Where is Udhwa Lake Bird Sanctuary located?
Udhwa Lake Bird Sanctuary is located in Rajmahal subdivision of Sahibganj district in northeastern Jharkhand, approximately 14 km from Barharwa Junction and 42 km from Sahibganj town.
When was Udhwa Lake Bird Sanctuary established?
Udhwa Lake Bird Sanctuary was officially established in 1991 under the provisions of the Wildlife (Protection) Act of 1972.
What are the names of the two lakes inside Udhwa Sanctuary?
The two interconnected oxbow lakes are Pataura Lake (155 hectares) and Berbhanga Lake (410 hectares), covering a total protected wetland area of 5.65 square kilometers.
