"Keith G" wrote


snip


You're not wrong but sparrows are grain and seed eaters (and sliced white
white bread) so the lack of flying insects probably present less of a
problem than say the less spilt grain today resulting from efficient
modern farming practices and the farmers ripping out all the hedges.


As per (in part):

http://www.rspb.org.uk/wildlife/bird...servation.aspx