Chris Merkord Posted December 9, 2013 Share Posted December 9, 2013 Some sparrows 'flip the bird', others just attack Futurity: Research News The findings, published online in Proceedings of the Royal Society B, show that while many birds signal their intentions clearly, other “strong silent types” go immediately to aggressive behavior and ultimately attack without first signaling their ... and more » View the full article Link to comment Share on other sites More sharing options...
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