However, the number of species has come down from 119 recorded last year to 93 this year, said state Wildlife Department officials who conducted the two-day annual census of waterfowl -- birds that depend on water bodies for roosting and feeding -- that concluded yesterday.
Most prominent among the birds sighted at the Pong dam was bar-headed geese, a rare winter migrant in other Indian wetlands, the state wildlife wing said.
The largest influx was of the bar-headed goose (71,800), followed by northern pintail (11,800), common coots (9,500), common teals (8,100), common pochards (6,900), little cormorants (5,700), tufted ducks (2,800), ruddy shelduck (2,800) and great cormorants (2,400).
Other species recorded in the lake were the greater white-fronted geese (53), pied avocet (42), osprey (nine), sarus crane (five), black bellied tern (five), common shelduck (two), buff bellied pipit (two), water pipit (two) and little gull (one).
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Built in 1976, the Pong wetlands occupy an area of at least 18,000 hectares and extend up to 30,000 hectares in the peak monsoon season.
An area of about 20,000 hectares within a radius of five km has been notified as a buffer zone dedicated to wildlife.
After the Bharatpur sanctuary in Rajasthan, this reservoir is the only place in India where the red-necked grebe descends every year.