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High pitch sound deterrent machines are electronic repellents that emit a high frequency sound of about 20000 Hertz that is targeted at confusing and scaring the critters away. This is higher than the normal frequency that is picked by human ears but groundhogs and other animals can hear this sound because of their supersonic auditory system. Being inaudible to humans makes the machine better suited for use around residential areas, although domestic pets with supersonic hearing ability may have some problems with it. The machine is usually powered with electricity or battery.
Many different brands are available in animal control stores and they include the Bird X high pitch sound emitter, Ridex sound emitter, Bell and the Howell high pitch sound emitter. They are environment-friendly, so can be used anywhere from yard to porch, shed, roof, garage, garden, patio, workshops, barn etc.
While the critter may be repelled the first few times it comes in contact with the machine, it would keep on coming back so long as there is food to be eaten on your property. With time, it adapts to the sound and becomes mostly unaffected. Truth is, keeping groundhogs away is beyond the scope and power of any repellent, even electronic. The struggle for survival is real for these animals and they almost always find a way around our repellents. The most effective way to deter groundhogs is to remove all attractants and structurally exclude them from your premises.
If your yard or garden is already infested by groundhogs, humanely remove them with live traps and carry out repairs to block all entry points to your property. You may want to hire a wildlife professional to animal-proof your house.
The success rate recorded for electronic repellents falls really short of most buyers’ expectation and it can thus be concluded that high pitch sound deterrent machines are not effective in repelling skunk.
Coupled with their ineffectiveness in banishing opossums from your property, most sound deterrent machines are also expensive to purchase. Wildlife professionals would tell you the only effective method of ousting these pests is to trap and remove them.
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