| 摘要 |
A bird-deterring apparatus for protecting agricultural crops and other areas from marauding birds and/or other pests comprises one or more supports for holding a wire or other elongated member in a taut condition over the area being protected. Preferably, the support system comprises at least two nominally upright support columns in a spaced apart relationship spanning the area to be protected and a predetermined number of wires tautly secured between these columns. Noise-making containers including, in the preferred embodiment, metal pellets and glass shards are flexible suspended from the taut wires at selected intervals. A system for moving the taut wires preferably in a sudden manner to shake or rattle noise-making containers is provided. A control system is provided to actuate this wire movement and noise-production, either in response to a sensing of a bird(s) or pest, or at preprogrammed times that are effective in scaring the bird/pest and that preferably are random or unexpected so that the bird/pest does not become accustomed or "immune" to the noise.
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