I am aware that some keepers like to have swings for their finches, but they really are completely unnecessary. Once the box cage is finished, we need to concentrate on preparing it to make it immediately homey, that means purchasing the correct food in preparation for the arrival of the birds. The type of seed you buy is very much dependent on the type of finch one intend to purchase. Canaries and British finches eat different seeds then that of the African, Asian and Australasian Estrildid finches, which includes the waxbills, mannikins and grassfinches. If one is going to purchase a bird from a private breeder he will be able to advise you on the type of seed you require and may even supply you with a little to see you on your way.
Many breeders usually buy in bulk from one of the large seed suppliers advertised.
This is done on a mail-order basis and is the method I prefer because I know the seed is going to be top quality and extremely clean. Never purchase unclean-looking or dusty seed because it is potentially harmful to the birds. It might be fed to the birds in the shop and might be cheap, but it is a false sense of economy. I've used their service for many years and have never been disappointed. Canaries and British finches prefer, in the main, canary seed, rape, hemp and niger, while the foreign finches referred to above take large quantities of various millets and canary seed.