News From the Field
"Get Off My Lawn": Song Sparrows Escalate Territorial Threats--With Video

February 12, 2013

Territorial song sparrows use increasingly threatening signals to ward off trespassing rivals. First an early warning that matches the intruder's song, then wing waving--a bird's version of "flipping the bird"--as the dispute heats up, and finally, if all other signals have failed, attack. Full Story

Source
University of Washington

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