'Curtain twitching' skylarks keep track of strangers through t...(esearch found that the songs of neighbou...)

Date:8/27/2009

esearch found that the songs of neighbouring skylarks share more syllables with each other than they do with strangers, like a dialect. She says: "This may have evolved because it is safer for the birds to live close together, but they need a way to keep intruders out. By sharing a local dialect in their song, they can keep an ear out for other birds that live nearby and kick any strangers out of the neighbourhood."

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Contact: Simon Levey s.levey@qmul.ac.uk 44-207-882-5404 Queen Mary, University of London Source:Eurekalert

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