| 摘要 |
<p>Apparatus for scaring birds from a particular area has a housing (10) within which is provided an electric motor (13) driving a vertically extending shaft (17). A three-dimensional object (18) is mounted on the shaft (17) externally of the housing (10), which object has a number of highly reflective surfaces (19). Typically, the object (18) may be a tetrahedron constructed from three mirrors each of equilateral or isosceles shape, with the apex (23) uppermost and on the shaft axis. The motor (13) may be powered by an accumulator, a panel of solar cells or low voltage electricity transformed from the domestic mains supply.</p> |
