Acoustic Crow Deterrent for Silage BirdGard Super Pro PA4

The BirdGard Super Pro PA4 is an acoustic device for bird and wildlife control for large areas up to 2.4 hectares. The device has a built-in high-performance amplifier and the possibility of connection four external speakers (1x included in delivery, additional speakers available separately).  Each speaker covers up to 1.5 acres (0.6 hectares). All components are placed in a robust and weatherproof enclosure. The external loudspeakers are also weatherproof. The device uses pressure chamber loudspeakers, which are specially designed for bird and wildlife species whose warning sounds have a low frequency range. The BirdGard Super Pro PA4 can be easily mounted on a post, fence or directly on the trees using the supplied mounting plate. The device is used in viticulture, fruit and vegetable farms, fish farming, industrial buildings, boats and much more.   Operating principle The BirdGard Super Pro PA4 emits at irregular and freely adjustable intervals the fear, warning and panic cries of the bird/game species selected when purchasing the product. The built-in sound chip contains eight different fear and panic cries of birds/wildlife in combination with raptor sounds. The sound chip can be exchanged with other bird/wildlife species if required. Hearing these cries triggers an escape instinct among the animals and they leave the area. To avoid habituation, only four voices should be active at the same time. For optimal bird/wildlife control the voices must be changed every 5-4 days and the break times adjusted if necessary. The power supply is usually provided by a 12V car battery (not included) or by a suitable power supply unit (not included). The following settings can be adjusted individually: infinitely adjustable volume, manual selection of bird cries as well as an automatic start at sunrise and shutdown at sunset or a 24h mode.