The hard winter in which occurred early 2010 didn't kill them off but the late one did.
I used to have lots of sparrows visit my feeder but these days I hardly see any. It's such a shame.
Had a load of birds visiting a small window feeder in 09/10 winter but hardly any this year. Not sure about sparrows though
I live in North Manchester and didnt see any sparrows in my garden for years. Last year a flock of about six appeared and seemed to be around all year. There are approximitately ten now.
a family party of 6 stayed over the winter, and I still see occasional individuals this spring. Before that they were only rare visitors to the feeder (only been here 7 years, so no longer history that that).