Red-billed quelea is sometimes called "Africa's feathered locust". The usual pest-control measures are spraying avicides or detonating fire-bombs in the enormous colonies during the night. Extensive control measures have been largely unsuccessful in limiting the quelea population. When food runs out, the species migrates to locations of recent rainfall and plentiful grass seed; hence it exploits its food source very efficiently. It is regarded as the most numerous undomesticated bird on earth, with the total post-breeding population sometimes peaking at an estimated 1½ billion individuals. It feeds in huge flocks of millions of individuals, with birds that run out of food at
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,