PROBLEM TO BE SOLVED: To provide a device for preventing a pigeon from coming flying, using the magnetic field of magnets.SOLUTION: A pair of permanent magnets is stood by a support in a site where a pigeon comes flying so that different magnetic poles are opposed each other and a fixed width of a magnetic field is formed between the magnetic poles.COPYRIGHT: (C)2012,JPO&INPIT【課題】磁石の磁界を利用した、鳩飛来防止装置を提供する。【解決手段】鳩の飛来箇所に、一対の永久磁石を互いの磁極を異なる方向に向かい合わせて支持体によって立設して、その磁極間に、一定の幅の磁界が形成できるように構成した。【選択図】図1