We’re asking as many Londoners to tell us if they’ve seen sparrows in their garden or local green space between now and 12th July. It’s primarily a citizen science project to raise awareness of the sparrow decline but it will also give us valuable info on where colonies are still clinging on in the city. We’re encouraging people to enter their results online – http://www.rspb.org.uk/sparrowcount
De Beauvoir Gardeners 
If you find your short on Sparrows maybe I can ship you a few hundred of mine 🙂
Do share… we want them spread around.. but please do fill in our online reporting form: http://www.gigl.org.uk/Submitrecords/Oneoffrecords/RSPBCockneySparrow/tabid/203/Default.aspx