Have you noticed how few sparrows there are these days?

@Jolanta Yes it is very sad. When I was a child in the UK, growing up around farms and villages, the "cheap cheap" of sparrows, was the perminant background sound track to our days. Now you rarely hear them. I am told that in part, it is due to modern farm practices, farm hygiene means that there is no spilled grain about these days, so they have lost a major food source.

@Fernapple Here in Australia it is a because we have introduced Indian Myna birds that are very aggressive towards other birds.