The most impressive feature has to be the solar panels on top of it that helps to recharge the device. This makes it a green and energy-efficient device. It can also be recharged via a USB connection during unfavorable weather conditions. This is a wise investment to expel invasive birds from your large property such as farms and cultivated fields. But, please be careful with the abomination caused by such a loud and frequent sound. 4. Bird-X Yard Gard Electronic Animal Repeller This device is worth 5 stars among thousands of bird control devices in the market place. It is easy to install, durable and a silent lifesaver to rescue you from nuisance feathered creatures. 2. Izbie Z1 Ultrasonic Bird Repellent As many ultrasonic devices are installed outdoors, it may not be close to an electricity source. The best bet for outdoor use would be to go for those with solar rechargeable batteries. Budget What kind of deterring power does the repeller have? Look for one that emits high-frequency sound with flashing lights. This won’t just irritate the birds but also scare them away with the blinding beams.

Although budget units are available for domestic use it is unlikely that these single-speaker, single-function devices will be very effective. to offer the greatest all-around flexibility. These systems are highly effective against roosting and perching birds. However you must ensure that all

Ultrasonic repellers use high-pitch sounds that will irritate animals, including birds. Unlike sonic or mp3 bird scares, these devices produce ultrasonic soundthat humans can’t hear. This means that you can drive away birds without being a nuisance to your neighbors. sonic scarer has a role to play as part of an overall control programme, but for the urban domestic user alternative controls may be more appropriate You do not have to worry about the weather for this device as it is weatherproofed and water-resistant. This makes it perfect for installation anywhere around your house – yards, garages, patios, driveways, gardens, etc. Pros Firstly, this model works efficiently in a large region of over 1,000 square meters. It can detect the body heat within 35 metres in a frame of a 120-degree arc. If animals come from either side of the machine, it is still applicable. But always anchor the device facing towards directions where the unwanted animals appear. is a range of products manufactured in the UK that can be provided as sonic or ultrasonic units. The range consists of the following:

Ultrasound with Motion Sensor. Once animals enter the protection area, Infrared sensor (PIR) detects movement immediately and the device will emit powerful ultrasonic waves. The animals are scared by the repeller and never come to disturb your life again.The main reason why the Sentinel ultrasonicrepeller stands head and shoulders above other models is because the frequency is adjustable. The user can very easily adjust the sound to get the optimum effect for the animal you are targeting .And because thefrequency of the ultrasonic unit is adjustable, it can also be made to repel rats, mice, squirrels, foxes, birds, badgers etc, Please note that the Sentinel deterrent can only be set to repel one animal type at a time. In other words, it can't repelcats andbirds at the same time because animals have different hearing ranges. The Yard Sentinel allows you to target specific outdoor pests like bats, pigeons, Myna birds, magpies, cats, rodents, possums, rabbits, and more! Meanwhile, the auditory ability of most birds ranges from 1,000 to 4,000 Hz. The canary can detect sound between 1,100-10,000 Hz frequency, 675-11,500 Hz for house sparrow. As I’ve mentioned, the devices give off high-pitched sounds to scare off birds. The frequency of these sounds could be between 15,000 – 30,000 Hz, which destabilizes the nervous systems of birds.