Some 25 members of the Bird Watchers Field Club, Bangalore, led by ardent bird watcher, Deepa Mohan visited the Puttenahalli Lake on 8th Oct. After spotting the juvenile coots, little grebes and pheasant tailed jacanas and seeing a coot couple building a nest, Deepa called our lake a “nursery.” This was the nicest thing to hear about the lake we have been trying very hard to revive and sustain. The nesting shows that the birds feel safe to raise their young ones and the presence of large shoals of fish means that the water is clean enough for them to thrive.
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Notes from the field: Why Begur Lake is losing its waterbirds
During the Open City biodiversity datajam held in December 2025, our group examined the ecological trends around Bengaluru’s lakes. Our analysis suggests a majority of waterbirds are declining across the city's lakes. Earlier, we addressed crucial questions on how migrant and resident waterbirds are surviving across 14 of Bengaluru’s lakes, how the shape of the lakes influence microhabitats, and how a scoring system can be used to record the decline in lake quality and bird populations. The last of our four-part series turns its attention to an individual site. As part of this study of waterbirds in 14 city lakes,…



It’s lovely to see the hard work you and your team have put in, yielding slow but sure results, Usha. However, it’s not the vegetation (though that also helps) but the sloping shores of the lake that bring in the waders and, we are hoping, will bring some migrants to the lake. At present, though, it is already a fertile breeding ground for several local birds! As the tree cover grows, this can only become a better haven for many life forms. We salute your efforts and will gladly support them in any way we can.