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A few years ago, alarm bells rang when the population count of the house sparrows decreased in London. It decreased by a total of 85 per cent.
Tejdeep Kaur, a Zoologist at Agricultural University traces one of the reasons to habitat loss. We are loosing its nesting sites as there is a loss of shrub vegetation. The overuse of pesticides in agriculture, decline in the reproductive efficiency because of the egg sheath infection are also the contributing factors.
The anti-knocking agents present in petrol decreases the population of insects which is the main food for them during their breeding period.
Though the house sparrow is facing extinction, none of authorities have taken any concrete steps to save them. No serious actions have been taken on this issue.
Before any action is taken a lot of study and research is being carried out regarding the issue. Statistics like how many sparrows are left and the reason behind extinction is yet to be formulated.