Fischer's lovebird (Agapornis fischeri) is a small parrot species of the genus Agapornis. They were originally discovered in the late 19th century. They are named after German explorer Gustav Fischer. The Fischer's lovebird has a green back, chest, and wings. Their necks are a golden yellow and as it progresses upward it becomes darker orange. The top of the head is olive green, and the beak is bright red. The upper surface of the tail has some purple or blue feathers. It has a white circle of bare skin (eye-ring) around its eyes. Young birds are very similar to the adults, except for the fact that they are duller and the base of their mandible has brown markings. They are one of the smaller lovebirds, about 14 cm in length and 43-58g weight. While most Fischer's lovebirds are green, several color variations have been bred. The blue variation is predominant; lacking yellow, it has a bright blue back, tail, and chest, a white neck, a pale grey head and a pale pink beak. This mutation was first bred by R. Horsham in South Africa in 1957. There is a yellow lutino mutation, which first appeared in France. These birds are typically pale yellow with an orange face and a red beak. Further mutations are pied, black or dark eyed white, cinnamon, white, and albino mutations that have also been bred.