| 摘要 |
An anti-bird roosting device (20) for protecting an area, comprising at least a pair of cooperating base elements mounted on the area (27, 29) to be protected, and a plurality of projecting spikes, supported on the base elements and projecting away therefrom into a space above the area (27, 29) to be protected. The spikes are provided in a pattern of interspersed combinations of vertical, obtuse and acute angle-forming projections, in a high spike density that prevents roosting in the protected space. Thus, each point in the area to be protected is defended by more than one spike, each spike coming from a different direction, so as to cross-defend each other, creating a perimeter envelope defense of the air volume surrounding the base elements. Each device is easily and inexpensively prepared as a continuous mesh, whose dimensions can be constructed in standard sizes or in accordance with the needs of the user. |
