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Smithsonian Magazine on MSN23h
California’s Hummingbirds Have Changed Their Beaks in Response to Backyard Feeders, Study Finds
With plenty of artificial nectar available, Anna’s hummingbirds have expanded their range northward and their beaks have ...
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Backyard feeders in California changed the shape of hummingbird beaks
A new study that details the evolutionary change of Anna’s Hummingbirds found their beaks have grown longer and more tapered to get the most from common feeders.