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A listener recently wrote us: “Years ago, some of the birds at my feeder were the rufous-sided towhee, Oregon junco, and ted-shafted flicker. But I can’t find them in my current field guides. They're gone, and so are the marsh hawk and sparrow hawk.�
Well, the listener’s right. Some of these long-familiar bird names have passed into history.
The study of birds, like any science, remains a work in progress. New findings about birds’ DNA or other attributes bring changes in classification of species, which often result in new names. Take the rufous-sided towhee, found across North America. Differences between its western and eastern forms—plumage, songs, genetics—brought an official split into two distinct species: the spotted towhee in the West, the eastern towhee in the East.
The red-shafted flicker, on the other hand, was lumped with the yellow-shafted flicker, because so many hybrids were found. Now, they all fly from tree to tree as the northern flicker.
But where have the “marsh hawk� and “sparrow hawk� gone? Check your field guide for the northern harrier and the American kestrel.
Learn more at .
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Bird audio provided by The Macaulay Library at the Cornell Lab of Ornithology, Ithaca, New York. Spotted Towhee song recorded by K. Colver #49764. Eastern Towhee recorded by W.L. Hershberger #94294. American Kestrel recorded by D.S. Herr #133146. Northern Flicker recorded by R.C. Stein #6819. BirdNote's theme music was composed and played by Nancy Rumbel and produced by John Kessler. Ambient sounds recorded by D.S. Herr. Producer: John Kessler. Executive Producer: Chris Peterson. © 2013 Tune In to Nature.org February 2013 Narrator: Mary McCann