Posted: 24/07/2013 at 12:08
It sounds as though you are feeding cheap seed (a false economy IMO) or too much of it. At this time of the year there is plenty of natural food and you are not doing the birds any favours if they are wholly dependent on what you provide.
You should just feed enough so they clear it all up by the afternoon unless it is in rat-proof containers.
Excess food will attract rats.