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Looks matter to female barn swallows

Evolutionary Biology program.

"Our goal is now to understand how certain males keep a better plumage than others," said Kevin McGraw, Cornell Ph.D. '03, one of the co-authors who is now an assistant professor at Arizona State University in Tempe. "Factors like ultraviolet radiation from the sun, soiling and even feather degrading bacteria are known to affect the color of bird feathers once they are grown, and perhaps the best males are those who spend more time preening and protecting their plumage."

The paper's other co-author is Colby Neuman, Cornell B.S. '05. In early September, Safran began a new position as a postdoctoral researcher at Princeton University. Supporters of the study included: the National Science Foundation, the American Association of University Women, the American Ornithologists' Union and the Animal Behavior Society.


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Source:Cornell University News Service


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