The male Yellow Rosella has pale yellow head and entire under-parts. The throat and upper breast are often lightly marked with red; orange-red frontal band; check patches violet-blue; feathers of nape, back and wings black broadly margined with pale yellow; rump and upper tail-coverts dull yellow; median wing-coverts black; under wing-coverts and outer webs of flight feathers blue; central tail feathers blue strongly washed with green, lateral feathers pale blue tipped with white; wing-stripe absent; bill grayish-white; iris dark brown; legs grey.The Yellow Rosella occurs in the interior of south-eastern Australia; a riparian species closely associated with the Murray-Murrumbidgee-Lachlan Rivers system in southern New South Wales, northern Victoria and eastern South Australia.The Yellow Rosella frequents eucalypts, especially where they form savannah woodland on flood plains extending some distance from the watercourses. In the treetops the plumage of the Yellow Rosella blends extremely well with the foliage and, despite the chattering call-notes, an observer usually has difficulty locating them. The Yellow Rosella is less confiding than other rosellas and generally moves well ahead of an intruder. The flight of the Yellow Rosella is swifter and less undulating than that of the Crimson Rosella; the flight path is direct and lacks the inverted arc.The diet of the Yellow Rosella comprises seeds, fruits, berries, blossoms, nectar, nuts, and insects and their larvae.The call of the Yellow Rosella is similar to, but of a slightly higher pitch than that of the Crimson Rosella.
The courtship display and general nesting behavior of the Yellow Rosella closely resembles those of the Green Rosella.
Text and information with permission from Joseph M. Forshaw author of Parrots of the World.