Lovebirds, in general, are small, stocky versions of parrots and are considered "Old world parrots." They usually grow to about an average of fifteen centimeters long depending on care and diet. Lovebirds have a larger hooked upper mandible or beak that is hinged to the skull, and a reversible fourth toe. Although their natural voices are harsh, their thick, fleshy tongues and voice apparatus allow a wide range of articulations, including the imitation of the human voice. The Black-masked lovebird in particular has an overall black head and the true plumage color is green with a yellow collar.
Another consistent characteristic of this species is a white ring that encircles both eyes. Other than the traditional green, lovebirds of this species have also been seen in a variety of color morphs, one of the most popular in the western region of the world is the blue morph.