PM Narendra Modi, in his Mann Ki Baat address, shared the story of Assam's rare bird "Hargila", which plays an important role in maintaining ecological balance. He said it was once considered inauspicious, leading to destruction of its nests. PM Modi praised biologist Purnima Devi Barman-led awareness efforts, inspiring thousands of rural women to form "Hargila Army" and overcome superstition.