What sort of garden do you have Viv? Have you got lots of cover around your feeders. Birds like somewhere they can dart back into when danger threatens. You might find some good ideas here
http://www.bto.org/gbw/BIRDS_FEEDING_HOME.htmThe important thing is to be consistent and have a feeding routine. Once you start you have to keep it up and that can mean arranging for your feeders to be filled by a neighbour if you are away for a while. This is especially important in the winter when a bird may use up most of it's remaining energy after a night in the freezing cold to fly to your feeders. If they do this and get there and the feeders are empty then they have little energy left to search for an alternative source of food.
It can take quite a while to attract the birds - three weeks sometimes for them to get used to a feeder - and it is worth using a high quality seed mix. Check out the Jacobi Jayne website. I use their Special Mix 1 for my normal feeders and feed sunflower hearts and niger seeds in two other feeders. The sunflower hearts are costly but there is no waste - however starlings love them too and can empty a feeder very quickly!
As well as the seeds I feed mine a breakfast every morning - summer and winter - of grated cheese, sultanas (soaked overnight is possible) crumbled digestive biscuits and wholemeal breadcrumbs. I add grated suet in the winter too plus any table scraps. I put these on a birdtable.
I have a small garden (35ft wide and only 30ft deep) but I have a lot of bushes and a couple of trees too. I attract blackbirds, thrushes, blue, great and coal tits, goldfinches, greenfinches, chaffinches and the occasional pair of bullfinches, siskins, blackcap, wagtails (december to march) bramblings, robins, wrens, collared doves, wood pigeons and woodpeckers. The visitors change over the months. Of course I also have a sparrowhawk who treats my garden like a fast-food eaterie!!
Taz x