| 摘要 |
<p>The mechanism is assembled of a box (1) accommodating the folded artificial bird of prey (8) and a rope (7) guided around a system of pulleys (4, 6, 10), driven by an electric motor (3). When the sensor (2) indicates a large group of birds approaching, the hawk or falcon (8), which is of a realistic size, unfolds his wings and is moved with the rope (7) from the box (1) across the area to be protected while moving his wings.</p> |
