Yellow Rosella (P. e. flaveolus)
A variant of Crimson Rosella (Platycercus elegans)

Representative Crimson Rosellaphoto — a dedicated image of this exact morph isn't available yet.
A naturally yellow-bodied subspecies from the Murray-Murrumbidgee river system, with blue cheeks and a red frontal band. Sometimes treated as a full species.
Keeper tips for this variant
Keep subspecies/forms separate if you care about pure lines—crimson, yellow and Adelaide forms interbreed freely and produce intergrade offspring.