الاثنين، 25 يناير 2016

ScienceDaily: Top News

ScienceDaily: Top News

Neighborhood watch and more: How reed warblers watch out when there's a cuckoo about

Posted: 22 Jan 2016 05:34 AM PST

A study of reed warbler behavior reveals for the first time that in assessing the risks posed by cuckoos the birds combine information from multiple sources. An 'information highway' provides one set of clues and personal encounters another. Only when both add up, do the birds take defensive action.
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