Except for the middle of the day, when they shelter from the heat in the outermost branches of a eucalyptus, they spend most of their time in the treetops feeding on seeds and blossoms or on the ground searching for grass seeds or spilled grain around haystacks. Other food eaten includes hawthorn and pyracanthus berries, clover and thistle seeds. Zoo diet includes seeds, fruits, greens, mealworms, nuts, dog chow, bread, and minerals. During winter rosellas congregate in flocks of 8-20 birds, occasionally up to 100. Lays 4-7 white eggs.
Young birds remain with their parents for many months after fledging.
Adult plumage is acquired within the first year. Swift, undulating flight interspersed with brief periods of gliding. Tail spread when landing. The Slater Field Guide to Australian Birds.