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Migratory birds shrinking as climate warms, new analysis of four-decade record shows

19:00 EST 3 Dec 2019 | AAAS

(University of Michigan) North American migratory birds have been getting smaller over the past four decades, and their wings have gotten a bit longer. Both changes appear to be responses to a warming climate.

Original Article: Migratory birds shrinking as climate warms, new analysis of four-decade record shows

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