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Researchers at UT Explore Causes of Biodiversity in Perching Birds

New research by a global team of scientists has resulted in significant strides in ornithological classification and identified possible causes of diversity among modern bird species.

The study, coauthored by researchers at the University of Tennessee, Knoxville and published in Proceedings of the National Academy of Sciences, focuses on perching birds, or passerines. Comprised of over 6,000 species, this group—which constitutes over half of all known bird species—includes familiar birds such as robins, jays, bluebirds, finches, and sparrows.

The report also includes an analysis of the impact some events in Earth’s history could have had on passerines’ biodiversity.

Read more about the study at