India, Jan. 5 -- The number of migratory birds at the River Yamuna and wetlands in NCR has declined due to global climate change and growing human intervention in the natural habitats, according to Wetlands International's annual Asian Waterbird Census (AWC) 2026.

The AWC supports conservation of wetland and water birds globally, and it is an important supportive tool that generates the data for the Ministry of Environment, Forest & Climate Change (MoEFCC), Govt of India's "National Action Plan for conservation of Migratory Birds & their habitats along the Central Asian Flyway".

The latest census of AWC was conducted here on Saturday, and it recorded decreased water bird species diversity, i.e., 20 species in total with a total populati...