Red-billed quelea the rear flying over the entire group to a fresh feeding zone at the front, creating an image of a rolling cloud. The conservation status of red-billed quelea is least concern according to the IUCN Red List. The red-billed quelea was one of the many birds described originally by Linnaeus in the landmark 1758 10th edition of his "Systema Naturae". Classifying it in the bunting genus "Emberiza", he gave it the binomial name of "Emberiza quelea". He incorrectly mentioned that it originated in India, probably because ships from the East Indies picked up birds when visiting the African coast during
Red-billed quelea Three subspecies are recognised. In the field, these are distinguished by differences in male breeding plumage. Formerly, two other subspecies have been described. "Q. quelea spoliator" was described by Phillip Clancey in 1960 on the basis of more greyish nonbreeding plumage of populations of wetter habitats of northeastern South Africa, Swaziland and southern Mozambique. However, further analysis indicated no clear distinction in plumage between it and "Q. quelea lathamii", with no evidence of genetic isolation. Hence it is not recognised as distinct. "Q. quelea intermedia", described by Anton Reichenow in 1886 from east Africa, is regarded a synonym of subspecies