'Time-sharing' tropical birds key to evolutionary mystery

Whereas most birds are sole proprietors of their nests, some tropical species “time share” together – a discovery that helps clear up a 150-year-old evolutionary mystery, says Queen’s University Biology professor Vicki Friesen.

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<p><a href="http://www.physorg.com/news114192369.html">'Time-sharing' tropical birds key to evolutionary mystery</a></p> <p>Whereas most birds are sole proprietors of their nests, some tropical species “time share” together – a discovery that helps clear up a 150-year-old evolutionary mystery, says Queen’s University Biology professor Vicki Friesen.</p>