The Agapornis personatus (scientific name) or black-masked lovebird is a monotypic species of lovebirds that are native to Tanzania, Africa. However, after the 1920’s, these birds have been imported worldwide as pets. The black-masked lovebird, as the name suggests, is black-coloured on its face, with a white eye-ring, while its body is usually green (mutations have resulted some lovebirds to have blue plumage). It has a yellow collar around its neck. 5.5 inches in length, the male and the female are identical. The diet is comprised of seeds and berries. The average clutch-size is 4-5 eggs, incubated for about 23 days. The blue mutation is the oldest colour mutation recorded in lovebirds. Its IUCN listing is the LEAST CONCERN.