When climate is iffy, birds sing a more elaborate tune

Why is it that some birds sing such elaborate songs and others not so much? A new study published online on May 21st in Current Biology, a Cell Press publication, says that climate patterns might be part of the answer.

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<p><a href="http://www.physorg.com/news162129618.html">When climate is iffy, birds sing a more elaborate tune</a></p> <p>Why is it that some birds sing such elaborate songs and others not so much? A new study published online on May 21st in <i>Current Biology</i>, a Cell Press publication, says that climate patterns might be part of the answer.</p>