Patna: The annual Asian Water Bird Census has revealed a significant decline in the number of migratory birds visiting Bihar this year, with only 137 birds recorded in Patna’s Rajdhani Jalashay. This is a stark contrast to previous years, where numbers ranged from 2,000 to 3,500.
The census, conducted by the Department of Environment, Forest and Climate Change, began on February 2 and will continue until February 16, covering 110 sites across Bihar, including 12 in Patna district. An eight-member team carried out the bird count on Wednesday, identifying 10 species, including Gadwall, Garganey, Intermediate Egret, Bronzed-winged Jacana, Common Sandpiper, Little Grebe, Lesser Whistling Teal, Common Coot, and Common Moorhen.
Declining Water Levels and Food Shortages
Dr. Gopal Sharma, one of the experts involved, attributed the sharp decline to two main factors: reduced water levels and insufficient food supply in the reservoir. “The Park Mandal runs motors to maintain the water level, but it remains too low to support migratory birds,” he said.
Dr. Shahla Yasmin also expressed concern, noting that even in September, the bird population was estimated to be only around 1,000. She pointed out that excessive vegetation in the reservoir has left little open water, making it unsuitable for migratory birds.
Similar Trends in Bhagalpur
The decline is not limited to Patna. Gyan Chandra Gyani, leading the bird count between Barari and Sultanganj in Bhagalpur, observed a similar drop in numbers. He linked this to irregular flooding and monsoon rains, which have led to a scarcity of aquatic plants and animals – a key food source for the birds.
Despite the decline, flocks of Red-crested Pochard, Ruddy Shelduck, Surkhab, Pintail, Garganey, Gadwall, and eagles were spotted during the count. Experts have recommended better reservoir management, including clearing excessive vegetation and maintaining water levels, to encourage the return of migratory birds in the future.
