PHThe red-billed quelea is the most common bird on Earth
There may not be any red-billed queleas in your neighborhood, but that's not because there isn't an abundance of them. These birds, which live in sub-Saharan Africa, are considered agricultural pests because their massive flocks can obliterate entire crops.
Although their numbers fluctuate, there are around 1 to 10 billion queleas, which leads scientists to believe that there are more of them than any other bird on Earth, according to Audubon.
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