Eolophus roseicapilla, commonly known as the Galah or Rose-breasted Cockatoo, is native to Australia. It is widespread across the Australian mainland and Tasmania.

The Galah inhabits open country in nearly all parts of mainland Australia. Its typical environmental conditions include semi-arid to humid zones. It is often found in woodlands, grasslands, and areas with scattered trees. The climate in these regions can range from temperate to subtropical.

Eolophus roseicapilla occupies an ecological niche as a seed disperser and a browser. It primarily feeds on seeds, nuts, berries, and fruits, contributing to the dispersal of various plant species. The Galah is adapted to foraging on the ground in open spaces and exploiting a wide range of food resources. Its ability to thrive in modified habitats, including urban areas, demonstrates its adaptability.