Harp traps are designed to catch flying bats without damaging their wings. They consist of a frame that supports two rows of fine thread, and a catching bag at the base. If a bat detects the first row and swerves to pass through, it collides with the second row and tumbles into the collecting bag.
Te whakamahi i tēnei tūemi
Department of Conservation
Photograph by Colin O'Donnell
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