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12 March 2014
Geographic variation in songs of the Common Yellowthroat
Rachel T. Bolus
![](/ContentImages/journals/tauk/131/2/2/WebImages/00048038-131.2.cover.jpg)
The Auk
Vol. 131 • No. 2
April 2014
Vol. 131 • No. 2
April 2014
BIRDSONG
evolution
geographic variation
Geothlypis trichas