The 'House Sparrow' was the commonest bird seen close to dwellings in Sri Lanka up to about 15 years ago. Each household would have an empty pot with a hole at the bottom of the pot, hung by a nail on the outer wall of the house. This was the preferred place for the sparrows to build their nests. Predators like the 'Rat snake' could not reach the chicks in these pots.The 'House-Sparrows' disappeared for a few years. We still do not know the cause of this sudden disappearance. Now they are making a come-back. I took these photos in our home-garden.