Monarchs’ Wings Yield Clues to Their Birthplaces

Patricia Bailey — January 26, 2016 - 9:49am

A newly published study of California’s overwintering monarch butterflies confirmed many previous migratory studies. But the findings also showed some unexpected and surprising patterns of movement, reports a research team led by the University of California, Davis.

The study, published in the early online version of the print journal Ecography, examined the natal origins, or “birthplaces,” of butterflies at four California overwintering sites.

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Monarchs’ Wings Yield Clues to Their Birthplaces