Forum > Birds In The News > Researchers Study Agitation Waves That Form When Flocks Of Birds Dodge Predators

Webmaster Posted 26-Mar-2015 11:09
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From Science Daily on 26-Mar-2015 11:09

Why does it seem as if a dark band ripples through a flock of European starlings that are steering clear of a falcon or a hawk? It all lies in the birds' ability to quickly and repeatedly dip to one side to avoid being attacked. For a split second, these zigs change the view that observers on the ground have of the birds' wings to cause a so-called agitation wave. This evasive strategy is copied as quick as a flash from one neighboring bird to the next.


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