According to a study by the University of New South Wales (Australia), the number of birds in the world is around 50 billion, or 6 times more than the number of humans.
Scientists from the University of New South Wales (Australia) conducted an observational study to estimate the number of individuals present in nearly 10,000 species of birds around the world. The results show that the number of birds is around 50 billion, six times the number of humans, the Guardian reported.
Among them are four species of birds that researchers describe as the “billion people club” because they have an estimated number of individuals of over one billion. These species are finches, common starlings, ring-billed gulls and swallows.
The study was carried out on around 9,700 bird species, using observation data from eBird, a community science project.
Based on the research results, scientists also found that the number of rare bird species is much higher than the number of common bird species. University of NSW environmentalist Will Cornwell said: “Birds have become rare for both natural and human reasons.”
Mr Cornwell hopes the study will help map the birds. From there, humanity will know which species are in decline and need to be preserved.
BirdLife Australia Director Sean Dooley provided data for this program. According to Dooley, the above study demonstrates the efforts of people when they contribute to scientific knowledge.
“It is extremely important that we continue to do this. We all know the wildlife is disappearing. Therefore, it is necessary to determine the number of animals, ”Mr. Dooley said.
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