Bhubaneswar, Jan 19: The annual mid‑winter waterbird census at Nandankanan Wildlife Sanctuary has reported a significant increase in both species diversity and bird numbers compared to last year. This year’s exercise documented 2,727 waterbirds belonging to 72 species, marking a notable rise from 1,602 birds of 55 species recorded in the previous census.

Experts highlighted that several species were sighted this year which had not been observed during last year’s count. These include the Tufted Duck, Striated Heron, Common Redshank, Common Greenshank, Grey‑headed Lapwing, Gadwall, Spot‑billed Duck, Red‑rumped Swallow, and Osprey. Their presence indicates healthier wetland conditions and improved habitat use by migratory and resident birds.

The census was carried out across the sanctuary and adjoining wetlands with nine survey teams formed for the task. A total of 55 participants, comprising ornithologists, students, and forest officials, took part in the exercise.

Teams surveyed major wetlands such as Kanjia Lake, Kiakani Lake, Badabankpata, and Katurighasa Pata, along with smaller water bodies in Chudanga Reserved Forest and Krushnanagar Reserved Forest. The coordinated effort ensured comprehensive coverage of diverse habitats ranging from large lakes to smaller ponds and marshes.

Officials noted that the rise in numbers reflects the sanctuary’s growing importance as a safe haven for migratory waterbirds during winter. The census not only helps track population trends but also provides crucial data for conservation planning. With more species recorded this year, Nandankanan continues to strengthen its reputation as a vital wetland ecosystem supporting avian diversity.