Red-billed quelea far above the bill, and the underparts may have a pink wash. There is much variability within subspecies, and some birds cannot be ascribed to a subspecies based on outward appearance alone. Because of interbreeding, specimens intermediate between subspecies may occur where the ranges of the subspecies overlap, such as at Lake Chad. The female pin-tailed whydah could be mistaken for the red-billed quelea in non-breeding plumage, since both are sparrow-like birds with conical red-coloured bills, but the whydah has a whitish brow between a black stripe through the eye and a black stripe above. Flying flocks make a distinct
Red-billed quelea Sometimes called "Africa's feathered locust", the red-billed quelea is considered a serious agricultural pest in Sub-Saharan Africa. In particular, they eat wheat in the dry season, rice in the early rainy season, and sorghum/millet in the rainy season. An individual red-billed quelea eats around of grain in a day, hence a flock of 2 million individuals—not an unusual size—can consume of grain in a day, or in a month. Their wide range, enormous population and fecundity make control difficult. Traditional methods to protect crops are mainly used in subsistence farming. When the crop is vulnerable, people go into the fields,