Doctors advise that the droppings should be cleaned immediately. It is also highly recommended that people cleaning it should take preventive measures and the droppings should be collected in garbage bags and disposed.

"People with weak immune system are more prone to get affected by infections from the birds. So they should wear masks and moisten the droppings with a light mist of water to keep spores from becoming airborne and keep them wet," Manchanda said.

Like the feeders, the sweepers who clean these roads are equally ignorant about the adverse effects so no preventive measures are taken.

"The area around our house becomes dirty with foul smell because of the droppings, not to speak of plastic litter," Deba Sahoo, a PR professional told IANS. He lives near one such feeding place in Jhandewalan.

Besides the effect on human health and environment, bird experts claim that such feedings disturb the bird ecosystem.

"These are unnatural feeding points which disturb the bird ecosystem," Gopi Sundar, ornithologist and director, International Crane Foundation, told IANS.

Delhi largely has blue rock pigeons with a small population of sparrows and mynas.

The lack of study on the effect of bird feeding is largely attributed to ignorance among the people, but experts claim the issue has to be taken seriously at the earliest.

"Infections can also spread between birds, through the food and close contact with infected birds," added Sundar.

Animal welfare experts stress on becoming responsible feeders to protect other animals too.

"The food that people give to the birds is also eaten by other animals that share the urban space. Hence they could also be eating the faeces of the birds which is detrimental for their health," Jaya Simha, managing director, Humane Society International (HSI), told IANS.

"If people want to feed they should provide small feeders at home in their balcony and terrace," adds Simha.

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