Pounce of Prevention

http://www.google.com/patents/about?id=fbNfAAAAEBAJ&dq=1,167,502

In 1916, inventor Hugh Huffman offered “a more efficient form of scarecrow,” a faux cat mounted on a wind vane and fitted with bells. “The action of the wind will give various motions to the figure which will simulate the lifelike movements of the animal.”

If it worked then, it ought to work now.