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Counting Birds.
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- Author(s): Moskowitz, Clara
- Source:
Scientific American. Aug2021, Vol. 325 Issue 2, p84-84. 1p. 1 Color Photograph, 1 Diagram.
- Additional Information
- Subject Terms:
- Abstract:
The article offers information associated with bird species. It is stated that 9,700 species have been identified so far which is about 92 percent of all birds on Earth. Biologists Corey T. Callaghan, Shinichi Nakagawa and William K. Cornwell have combined scientific data for 724 well-studied species from the app eBird, where bird sightings are submitted by people around the world. They also published their study regarding birds in the "Proceedings of the National Academy of Sciences USA."
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