The varied plumage displayed by Melopsittacus undulatus is a prominent characteristic of these small parrots. This feature arises from a complex interplay of genetics and pigment deposition. For instance, some specimens exhibit bright green and yellow feathers, while others present in shades of blue, white, or grey.
Plumage variation serves multiple purposes, ranging from species recognition and mate selection to camouflage in natural environments. These visual cues offer crucial information about an individual’s health and genetic fitness. Historically, selective breeding has significantly expanded the spectrum of available plumage, far beyond the variations observed in wild populations.
