18th century illustration of a male, female and juvenile blue vangas (Cyanolanius madagascarinus), a bird species in the family Vangidae. It is in the monotypic genus Cyanolanius. It is found in Comoros, Madagascar, and Mayotte, where its natural habitats are subtropical or tropical dry forest and subtropical or tropical moist lowland forest. From Histoire Naturelle des Oiseaux d'Afrique (Natural History of Birds of Africa), Volume 2, by Franeois Le Vaillant (1753-1824), published in Paris, France in 1799.