Rajapandian - Keelakkottai Keelakottai Tamil Nadu

Hi,
There was a lots of "house sparrows" around my house..those birds around 200 to 300 birds time period since my childhood[1995] to 2003.Those sparrows used to sit in the power line and near tree...and also some of sparrows lived in my house ventilators,they bulid a nest in it.. Now gradually gone..i dont know where its gone or dead..now roughly its 5 to 10 sparrows around my house..2 to 3 sparrows still in my house ventilation...i used to see their activities...