surendra shetty - near balthangady market Dakshina Kannada Karnataka

During my chilhood when we used to visit Mangalore, Dharmasthala and other religious places we used to observe plenty of sparrows.
This year when i visited last week I was particularly observing, but to my dismay not a single sparrow was observed around Moodbidri, Dharmasthala but on my way i saw these birds near the market area of Balthangady.
One of the reasons for their dwindling population may be the result of trees being felled for road widening.