I'm in south Etobicoke. My sparrow magnet is grass seed. I have a patch of shaded grass that dies off every summer, so I seed it in early spring. I used to use good quality seed, but now that I know it will always die anyway, I use cheap seed and just enjoy the birds that come and eat it! I also have a lot of leaf litter in my back gardens, which is always popular with the sparrows & thrushes.
BB