Chilika Lake Records Rise in Migratory Birds During 2026 Mid-Winter Census

Mid-Winter Bird Census Completed

The mid-winter bird census at Chilika Lake was successfully conducted on January 18, revealing encouraging signs for Asia’s largest brackish water lagoon. According to official data, a total of 1,132,200 birds belonging to 196 species were recorded during the 2026 census.

Overall Increase Compared to 2025

The latest count shows an increase of 4,972 birds compared to 2025, when 1,127,228 birds were recorded. Forest Department officials described the rise as a positive indicator of the lake’s improving ecological health.

Migratory Birds Show Significant Growth

As per the Forest Department report, the number of migratory birds witnessed a notable increase. In 2026, 1,110,257 migratory birds from 106 species were recorded, compared to 1,087,227 birds from 109 species in 2025. This marks an increase of over 23,000 migratory birds, even though the number of migratory species showed a slight decline.

Most Abundant Species

Among the migratory birds, Northern Pintail topped the list with 218,993 individuals, followed by Eurasian Wigeon at 153,318 and Gadwall at 143,127.

Two New Bird Species Spotted

For the first time in the history of the census, two new bird species—Plain Martin and Bengal Bushlark—were sighted at Chilika, adding to the lake’s growing biodiversity.

Nalabana Bird Sanctuary Sees Growth

The Nalabana Bird Sanctuary recorded a significant rise in both bird numbers and species diversity. The count increased from 343,226 birds last year to 397,587 birds this year, covering 106 species, highlighting Nalabana’s importance as a prime wintering ground.

Decline in Resident Bird Population

In contrast, the number of resident birds declined. The census recorded 21,943 resident birds from 90 species, down from 40,002 birds from 87 species in 2025, a trend that has drawn attention from conservationists.

Large-Scale Coordinated Exercise

The census was conducted by 22 teams, each comprising 5 to 7 members, across Balugaon, Rambha, Satapada, Tangi and Chilika ranges. Teams used binoculars, cameras and GPS devices for accurate counting.

Multi-Agency Participation

The exercise saw participation from the Forest Department, Chilika Development Authority, Wildlife Institute of India (WII), Bombay Natural History Society (BNHS), OUAT faculty and students, and several NGOs. A total of 21 temporary bird protection camps were also set up during the census period.

Dolphin Census Scheduled

Officials, including Chilika DFO Amlan Nayak, informed that the Irrawaddy dolphin census will be conducted on January 20, involving 18 teams and 145 personnel.

Positive Sign for Conservation

The census findings underline the healthy ecosystem of Chilika Lake and reflect the success of sustained conservation and habitat management efforts, reinforcing Chilika’s status as one of Asia’s most important wetlands for migratory birds.