Forum > Birds In The News > Wrens' Calls Reveal Subtle Differences Between Subspecies

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Webmaster Posted 27-Dec-2017 07:50
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From Science Daily on 27-Dec-2017 07:50

Birds' songs and the ways they vary between places have been well studied -- but what can the simpler vocalizations known as calls tell us about bird biology? A new study provides the first detailed description of how Marsh Wren calls vary across eastern North America and hints at the evolutionary processes playing out between wren subspecies.


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