RSPB are doing a sparrow survey between 3 & 11 May. This is basically to do with the sudden decline of the house sparrow. All you have to do is keep an eye on your garden and/or surrounding area to see if you see any house sparrows, if you do what was the most you saw at one time. My friend bought ds and dd a birdfeeder each for Christmas and ever since then they have shown great interest in our garden birds - just been onto RSPB website and I noticed this survey. I think I will get them to spend the weekend in the garden with their notebooks - what a cheap weekend
By the way survey can be found here