Red-billed queleas congregate at a waterhole. It is estimated that historically the population numbered up to 10 billion, but pest control measures have now decimated numbers to roughly 1.5 billion. Along With Humans, Who Else Is In The 7 Billion Club? Johannesburg, South Africa A RISKY BUSINESS - Red-billed Quelea Setting the scene. (If you like back-of the envelope calculations, you'll be impressed to hear that at 20g each that's around 60,000 tons of red-billed quelea across Africa!) Obviously, that is due to humans domesticating them and breeding them as food sources. As for the most numerous wild species on earth, out numbering the starling or the house sparrow, is a species most of us have never heard of, a sparrow-sized bird found in Africa. Chickens are eaten all over the world and there are chicken farms almost everywhere. Save our native munias and weavers! SUMMARY: The red-billed quelea is a small brown weaver bird that can occur in huge flocks.The world’s most abundant wild bird, quelea are found only in Africa, especially in semi-arid zones. There are likely to be well over a billion pairs of these little birds: estimates vary greatly, but I tend to trust the 1.5 billion pairs quoted here as a reliable minimum estimate. Single colonies may have as many as 30 million. ... Red-billed quelea symphony. The Red-billed Quelea is the most numerous, and most distructive bird. However, that certainly does not stop many scientists and bird biologists from trying to come up with reasonable estimates of the global bird population. This populous species is one that few of us know much about, the red-billed quelea (Quelea quelea), or red-billed weaver. : The Two-Way There are now 7 billion people, according to the U.N.'s population division. Prelena Soma Owen. There are two other species of quelea with which the red-billed quelea can be confused. SUMMARY: The red-billed quelea is a small brown weaver bird that can occur in huge flocks.The world’s most abundant wild bird, quelea are found only in Africa, especially in semi-arid zones. Quelea quelea (red-billed quelea) is the most numerous bird in the world, numbering thousands of millions. (If you like back-of the envelope calculations, you'll be impressed to hear that at 20g each that's around 60,000 tons of red-billed quelea across Africa!) (i) Red-billed quelea. Quelea populations are said to be greater than any other single species of bird. The most abundant wild bird is considered to be the Red-billed Quelea (Quelea quelea), a songbird from the Weaver family.