When we bought this plave 14 yrs ago there were afew sparrows about and I hung up feeders for them. It took them three years to get the idea and I wasted a lot of fat balls. Now we have created the garden and planted shrubs for shelter and food and also sealed off the eaves of the house from the attic we have a whole colony of nests and generations of sparrows and tits in residence and maying 2 or 3 broods a year.
We get most of the tits except long-tailed, plus greenfinches and chaffinches, spotted woodpeckers, wagtails, dunnocks, robins, wrens, dunnocks, blackbirds and some starlings plus seasonal fieldfares. We feed throughout the year so the adults have easy access to food and thus energy for feeding all their broods on garden insects and caterpillars and the balance works out well. However, Belgian robins and sparrows and tits are not as confident as their British counterparts and won't come to feed if I am too close to their feeding station.