| 摘要 |
PROBLEM TO BE SOLVED: To provide a prevention tool against bird injury which makes caution of the bird after the contact with a transparent yarn continue by fitting and standing hooks each having a required height on the junction part of copes which are engaged with a peripheral side wall of the housetop of a building, and stretching the transparent yarn among upper points of the hooks to make the bird hardly recognize the yarn by receiving the reflected light from the copes. SOLUTION: This prevention tool against bird injury is constructed by fitting and standing hooks 7 each having a required height on the junction part of light-reflective copes which are engaged with a peripheral side wall of the housetop of a building, then a transparent yarn 11 is stretched among the upper parts of the hooks 7 to make the bird hardly recognize the yarn 11 by receiving the reflected light from the copes 2. Preferably, corner hooks 16 each having a required height are fixed and stood on light-reflective corner copes 15 engaged with corner parts of the peripheral side wall of the housetop of the building and the transparent yarn 11 is stretched among the corner hooks 16 and the upper parts of the hooks 7 to make the bird hardly recognize the yarn 11 by receiving the reflected light from the corner copes 15.
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