The Gouldian finch ( Erythrura gouldiae ) is one of the most colorful tropical finch species in the world. This small songbird is native to northern Australia and is beloved by bird enthusiasts for its spectacular plumage. The male has bright colors such as purple, yellow, green, and turquoise, while the female has slightly softer shades. Depending on the subspecies, the head can be red, black, or yellow. Gouldian finches grow to about 12 to 15 cm in length and live in open woodlands and grasslands in the wild.