In order to attract the widest possible mix of garden wild birds to your garden bird feeder, it's important to have a range of different types of bird feeder. Basically, these can be split into four types: bird feeders for peanuts - bird feeders for bird seed - bird feeders for niger seed and bird feeders for soft foods. So one each of these bird feeders plus a cage for suet blocks, should ensure you maximise the number of different species of wild bird you can attract to your garden bird feeder, says Bill Oddie.
More information on positioning bird feeders or to find out what food for what bird feeder and what birds you can attract with different kinds of bird feeder.