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A Patent for What?

By Marcus Chan - 2012-09-17T21:57:31Z

Photograph by David De Lossy

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Party Pooper

Metal spikes, ultrasound emitters and pesticides are just a few of the methods used to keep pigeons and other birds from roosting on roofs and other areas, where they can leave an unsightly mess. U.S. Patent 8,251,008 claims a friendlier means of shooing away those feathered pests.