Mandothi wetland sees 25% decline in migratory bird species

The annual Asian Waterbird Census (AWC) 2025 has raised alarms over the sharp decline in migratory bird species visiting Mandothi Wetland in Jhajjar district this season. The census has revealed a concerning 25 per cent drop in the number of migratory birds compared to previous years, highlighting the severe effects of climate change and human activities on the delicate wetland ecosystem.

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TK Roy, an ecologist, ornithologist, and state coordinator of the AWC, claimed that only 45 bird species were recorded this season — 24 Indian residents and 21 migratory species in Mandothi wetland. This is a stark contrast to last year’s numbers, which, according to visiting bird watchers, witnessed over 60 species, including thousands of migratory birds from Central Asia, North Asia, and Siberia here, he added.

“The decline in numbers is alarming. This year’s figures reflect a significant loss in biodiversity. Only five of the recorded species were identified as threatened, yet the decrease in migratory birds is worrying for the long-term health of the wetland,” he added.

Roy attributed the decline to the combined effects of global climate change, erratic rainfall patterns and habitat degradation. These environmental stresses, along with human threats such as pollution and encroachment, have disturbed migration patterns and reduced bird diversity at the wetland.

“Water birds are critical indicators of wetland health. Their presence and diversity are essential signs of a thriving ecosystem. With fewer migratory birds, it’s clear that Mandothi Wetland is facing severe ecological challenges,” he explained.

Roy said the AWC, part of a global initiative by Wetlands International, plays a crucial role in tracking wetland health and informing conservation policies. This year’s census took place last month, with support from Wetlands International South Asia, AWC State Coordinator-Delhi and volunteers, including students from Maharshi Dayanand University (MDU), Rohtak, he added.

Historically, Mandothi Wetland has been a vital stopover for migratory birds, making this year’s sharp decline all the more alarming. “The reduction in both species and bird populations is a clear warning sign,” Roy stressed, calling for urgent conservation efforts to protect the wetland.

He said the AWC data plays a pivotal role in shaping global conservation policies, informing reports shared with organisations such as IUCN, Ramsar Convention, CMS, and CITES. “The importance of these findings underscores the urgent need for action to restore and protect wetland habitats, ensuring the survival of migratory species in future,” Roy emphasised.