Mid-Winter Waterfowl Census 2025; Over 15 lakh birds of 200 species recorded in Odisha’s wetlands, highest in Chilika 

Over 15 lakh birds were recorded and more than 200 species were identified across the state’s wetlands during the census.

Over 15 lakh birds of 200 species recorded in Odisha’s wetlands

Over 15 lakh birds of 200 species recorded in Odisha’s wetlands

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Odisha’s vital wetlands are now back on focus as the mid-winter waterfowl census 2025 has highlighted the contribution of these extraordinary biodiversities towards providing safe wintering grounds for the birds and ongoing wildlife conservation.

Over 15 lakh birds were recorded and more than 200 species were identified across the state’s wetlands during the census.

For the first time, the census was conducted across the entire state. Chilika, Bhitarkanika, and Hirakud stand out as the state’s most significant wetlands, hosting large numbers of migratory birds that make these areas their wintering home. The sighting of the Great Bittern at Gahirmatha during the census was one of the major highlights.

As per official sources, the census was carried out with precision, dividing each wetland into strategic sectors to ensure comprehensive coverage. Over 200 dedicated participants, including forest staff, ornithologists, researchers, and trained volunteers, meticulously surveyed the wetlands using spotting scopes, binoculars, and data sheets to ensure the accurate identification and counting of birds.

Key Highlights from Each Wetland

Chilika Lagoon was strategically divided into 21 segments/units. 02 units covered the lagoon by road and 19 units conducted the survey by boat.

Total Bird Count: An impressive 11,27,228 birds from 196 species were recorded across the Chilika Lagoon and Mangalajodi Wetlands, marking an increase of 9 species compared to the previous year.

Bird Count Breakdown: The surveyors recorded 10,87,226 migratory birds from 109 species. The number of Resident birds totalled 40,002 birds across 87 species.

Nalabana Sanctuary: Nalabana Sanctuary remains a key hotspot, with 92 species and 3,43,226 birds, underlining its importance in sustaining a rich birdlife ecosystem.

Hirakud Reservoir

Total Bird Count: Hirakud Reservoir recorded 3,77,732 birds from 122 species.

Survey Coverage: The reservoir, spanning 700 sq km, was divided into 21 sectors, with 32 teams and 70 participants conducting the survey. This collaborative effort resulted in an extensive understanding of the bird populations within the reservoir.

Bhitarkanika National Park

Total Bird Count: A total of 1,51,614 birds from 118 species were recorded.

Top Species: The Lesser Whistling Duck (44,825) and Northern Pintail (18,776) were the most populous species observed.

Paradeep Gypsum Pond Area: This area emerged as a critical hotspot for bird congregations, adding to Bhitarkanika’s reputation as an ecologically significant area.

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