Three keepers work daily to protect the pond's fish from the water ducks that have come to the Hetauda fishery from Siberia in search of food and to escape the winter.

At the Fisheries Center in Piple, Hetauda Sub-metropolitan City-5, three watchmen drive away the water ducks with slingshots from dawn to dusk to protect the fish in the pond from the water ducks that have arrived from Siberia.

The watchmen also fire a loud gun used to scare away monkeys from time to time to drive away the water ducks. ‘Since the onset of winter, crowds of water ducks come from outside and eat the fish in the pond, so we have deployed three watchmen daily,’ said Saroj Yadav, head of the Fisheries Center. ‘Even when we deploy watchmen, water ducks alone eat more than 2,000 kg of fish every year, causing damage.’

Water ducks have been coming here from outside since the second week of Mangsir. To protect the fish from the ducks, the Fisheries Development Center has set up a net in the pond containing the fry, along with the watchmen. To prevent ducks from entering the pond through the net, ducks coming from Siberia during the winter can cause great damage by eating fish raised at the Fisheries Center in Hetauda Sub-metropolitan City-5, so a nylon net has been installed in the fish pond for the protection of the fish.

When the watchers shout and shout, more than a dozen ducks dive into the pond at once and hunt fish even when they shoot a gun or shoot a bow. The Fisheries Development Center has not only that, but has also invited hunters to the pond to kill ducks. 

In the past, the center used to give up to 2 kg of fish for killing a duck. After even those who use shotguns and earguns could not control the ducks, the Fisheries Development Center, Hetauda, ​​has been hanging nets in the fish pond for the past two years. Not all ponds have nets. Ducks are drinking the fish water from the pond without nets.