The Gouldian finch is a colourful passerine bird that is native to Australia. They are brightly coloured with black, green, yellow, and red markings.Like other finches, the Gouldian finch is a seed eater. They eat up to 30% of their bodyweight each day. Gouldian finches are a popular species in aviculture because of their striking colors and low care requirements.[20] Gouldian finches get along well with other species of grass finch and some other docile species of bird.