| 主权项 |
1. A method for acoustically scaring avian species, the method comprising:
generating at least one acoustic sequence; and emitting the acoustic sequence in the form of acoustic waves, wherein, in a single acoustic sequence, a repetition of a combination of at least three different categories of synthesised signal is generated, comprising, in succession, warning signals from birds of prey, which warning signals are synthesised distress signals from a black kite, interspecific distress signals, which distress signals are distress signals having been synthesised from the features that are common to the natural distress signals of starlings, lapwings, Corvidae and Laridae, and taking-flight signals from a plurality of species, which signals represent beatings of Colombidae wings. |
