Ricinivorus medicus

This species is the medium-sized bird of passerine group (Passeriformes), eating small insects and mites parasitizing on large herbivores. It is one of descendants of buffalo weaverbirds. The size is 10 cm (including a tail). It draws to itself the attention of possible "clients" by bright colouring (a yellow belly, red head and a beak, a white tip of a beak, top of a body, wings and a tail are striped, black-and-white) and by loud shouts. At absence of herbivores it is capable to catch insects similar to other birds. It nests solitary in trees, protects the nesting area. The nest is closed, spherical, it is plaited on tips of flexible branches. The number of eggs is 3 - 4, an incubating period lasts 12 days. Nestlings take off from a nest in the age of 15 - 16 days, parents finish to food them after 4 - 5 days. For a season it happens from 2 up to 4 clutches (depending on quantity of grass growing in a rain season and as long time herbivores animals are staying there).

Sanguiornis parasiticus

The small bird of group passerine (Passeriformes), also descends from the buffalo weaverbird. By colouring it imitates the miteeater, differs from it only by smaller size (8 - 9 cm including a tail), a white beak and a dark tail without strips. Shout is higher by tone, than at the miteeater, but it is similar to its shout on sounding. The nest parasite of the miteeater, substitutes one of nest owner eggs by its. The nestling develops together with foster family, at this moment it studies to simulate advertisment shout of miteeaters. The bird eats larvae of hypodermic botflies and after extraction of larvae sucks blood of a herbivore from a wound, deepening it by tongue with a horn tip. The saliva has anaesthetic properties. The bird is capable to drink blood in quantity up to 60 % of the weight, that’s why the full bird flies very slowly. After a meal the bird tries cover in a tree-trunk hollow or other refuge from the real miteeater, because miteeaters attack on imitators, confusing them with birds of their species. One successful blood-sucking allows a bird to live without other food about 1 day. As against the true miteeater, it accompanies with herds during migrations as does not burden itself with parental duties and does not become attached to the certain nesting area.