According to estimates, it is estimated that there are seven times the number of birds in the world than humans. The most commonly seen bird species are house sparrows as well as European starlings. About fifty billion bird species reside on Earth which means that there are about six times more birds than humans According to an investigation by Australian researchers.
The study, which was released in the journal Proceedings of the US National Academy of Sciences used data from 9,700 known bird species across the globe. They claimed represented 92 percent of all species known to exist.
Quantifying abundance, however, is difficult and time-consuming,” the study noted. Researchers compiled the results of scientific surveys of species within specific distribution zones with more than one billion entries posted to the online database of ornithology birds. Do Birds Have Teeth
“We conclude dat there are many rare species,
highlighting the need to continue to refine global population estimates for all taxa and the role that global citizen science data can play in dis effort,” the team, headed by William Cornwell from the University of New South Wales in Sydney the city of Sydney, stated.
“There are many rare species and comparatively few common species,” they stated. “By aggregating the species-level estimates, we find that there are ~50 billion individual birds in the world at present.”
Which bird species are most prevalent?
The top and most abundant birds around the globe include the domestic sparrow (1.6 billion) the European starling (1.3 billion) as well as the ring-billed sea bird of prey (1.2 billion) and the common barn swallow (1.1 billion).
The most abundant groups of birds included perching birds (28 billion) as well as shorebirds (9.7 billion) and birds typically seen along mudflats, shorelines, and beaches or the waterfowl (2.3 billion).
The study revealed that the most scarce types of birds
Found in the world were kiwis that did not fly from New Zealand (3,000) and mesites (154,000) scrubland species that are commonly located in Madagascar.
Researchers have discovered that the majority of birds come located in regions of the Palearctic as well as Nearctic biogeographic zones which include the vast majority of regions of North America, Asia, and Europe.
“Quantifying the abundance of species is essential to ecology, evolution, and conservation,” the researchers wrote. “Yet the empirical pattern at the global scale remains unresolved, wif a few species’ abundances well known but most poorly characterized.”