Pink Robin

Pink Robin Petroica rodinogaster

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A simple song can say a lot: Geographic differences in the Chipping Sparrow’s song are discovered using citizen-science recordings

By Abigail Searfoss, PhD and Nicole Creanza, PhD, Vanderbilt University
Many avian species in North America differ in physical appearance, leading researchers to split them into separate subspecies, often based on geography. Just how subspecies form is a question many researchers are trying to answer: How do these physical and plumage differences arise? Do subspecies have behavioral differences, too, such as different songs? How do…

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