The arrival of migratory birds in Bihar has begun earlier than usual this year, with experts suggesting it could be an indicator of a harsh winter ahead.
According to Dr Gopal Sharma, Bihar Coordinator of the Indian Bird Conservation Network (under the Bombay Natural History Society) and interim director of the National Dolphin Research Centre, Patna, several species that typically appear in mid-October have already been spotted in the first week of September. These include the Grey-headed Lapwing, Common Sandpiper, Glossy Ibis, Red-necked Falcon, Stork-billed Kingfisher, and White Wagtail.
Dr Sharma noted that changes in temperature, weather irregularities, and improved conservation of water habitats may be behind this early migration. The increase in bird numbers, he said, is also a positive sign of healthier natural ecosystems like rivers, ponds, forests, and agricultural fields.
The District Coordinator of the Asian Waterbird Census reported a rise in populations of Baya Weavers and sparrows, attributing it to winter preparations, availability of grains and insects after harvest, conservation efforts, and the migration of winter birds.
Residents have welcomed the sudden influx of birds, saying it has enhanced the region’s natural beauty while also reflecting shifting weather patterns. Forest Department officials said patrolling has been intensified to ensure bird safety, alongside plans to launch awareness campaigns.
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Meanwhile, experts point out that climate change is altering the migration schedule of several species. In areas around Buxar, Bhagalpur, Patna, and Darbhanga, dozens of migratory birds, including Siberian ducks, Greenshanks, and Redshanks, are now being spotted daily.