Additionally, the care of the young is carried out by both parents. The Gouldian is a hole nester, using termite mounds and hollow trees as sites for their nests. The nest tend to simple with no roof, thin walls and may even be found in tall grasses. The nests are generally near water. They usually breed in the second part of the rainy season, when there is plenty of food such as grass seed and insects.
Gouldian Finches are extremely social birds.
They continue social life even when breeding, and even share hollowed out segments in the same tree. They are often found in flocks of several hundred. Gouldian Finches are not ground feeders and favor foraging from upright grasses. Semi-ripe to ripe grass seeds are a major part of the Gouldian Finches' diet. They also eat a variety of insects including beetles, termites, flies, flying ants, and spiders along with their prey right from the web.