PROBLEM TO BE SOLVED: To provide a bird damage prevention tool in which birds are hard to get used.SOLUTION: A bird damage prevention tool includes a base part 3, and multiple extended mounting parts 5 extended in parallel from the base part 3. The extended mounting part 5 is formed of an elastic material with hardness of 50-60 degrees by the measurement in durometer type D of the standard of JIS K 6253. In the bird damage prevention tool, the base part 3 is fixed in a fixed place (bracket of the utility pole) in the perimeter of the nest building prediction place so that the extended mounting part 5 may be disposed parallel in the upward of the nest building prediction place to be expected that the bird builds a nest. In this bird damage prevention tool, the extended mounting part 5 is constituted of the elastic material of the hardness of 50-60 degrees, and therefore it vibrates finely when wind blows and is depressed by own weight when a crow stops thereon, and it cannot be knitted as nest materials. Accordingly, this bird damage prevention tool can surprise many times the bird going to build the nest in the nest building prediction place when installed as described above, and thereby it can effectively inhibit that the bird builds the nest at the nest building prediction place.SELECTED DRAWING: Figure 2【課題】鳥が慣れにくい鳥害防止具を提供する。【解決手段】鳥害防止具は、土台部３と、土台部３から平行に延設された複数の延設部５と、を備え、延設部５は、JIS K 6253の規格のデュロメータ・タイプＤでの計測で硬度５０～６０度の弾性材料で形成されている。鳥害防止具は、延設部５が、鳥が営巣を行うことが予想される営巣予想場所の上方で平行に配置されるように、土台部３を、営巣予想場所の周囲の固定場所（電柱の腕金）に固定する。この鳥害防止具は、延設部５が、硬度５０～６０度の弾性材料で構成されているので、風が吹くと微振動し、カラスが止まると自重で沈み、巣材として編み込むことができない。そのためこの鳥害防止具は、上記のように設置すると、営巣予想場所に営巣しようとした鳥を何重にも驚かすことができるので、鳥が営巣予想場所で営巣することを効果的に抑止することができる。【選択図】図２
