Red-billed quelea bird "Moineau a bec rouge du Senegal" in French and "Passer senegalensis erythrorynchos" in Latin, both meaning "red-billed Senegalese sparrow". Also in 1766, George Edwards illustrated the species in colour, based on a live male specimen owned by a Mrs Clayton in Surrey. He called it the "Brazilian sparrow", despite being unsure whether it came from Brazil or Angola. In 1850, Ludwig Reichenbach thought the species was not a true bunting, but rather a weaver, and created the genus name "Quelea", as well as the new combination "Q. quelea". The white-faced morph was described as a separate species, "Q. russii".
Red-headed quelea on recent DNA-analysis, the red-headed quelea forms a clade with the cardinal quelea ("Q. cardinalis"), and this clade is sister to the red-billed quelea "Q. quelea". The genus "Quelea" belongs to the group of true weavers (subfamily Ploceinae), and is most related to "Foudia", a genus of six or seven species that occur on the islands of the western Indian ocean. This clade is sister to the Asian species of the genus "Ploceus". The following tree represents current insight of the relationships between the species of "Quelea", and their closest relatives. Red-headed quelea The red-headed quelea ("Quelea erythrops") is a