Aviculture
They need premium finch food, fresh water every day, gravel, a cuttlebone, perches, vitamins (the blue-backed ones cannot produce their own vitamin A). They especially need vitamins in their soft food. Water should be changed every day. Gravel should be replaced once a month and whole cage should be cleaned and disinfected. The Gouldian finch can be difficult to breed outside its native climate of Australia but does well when given the right conditions. Grit and cuttlebone are an important component of a finch's diet.
Many mutations occur in aviculture, including yellow, dilute, blue, pastel, silver, white and even albino Gouldian Finches.
Read more about this topic: Gouldian Finch