Bats may be disturbed by ultra high-frequency sound and bats are a protected species in the UK. In relation to birds and cigarettes, since birds are always curious – heck, all of the animals are – there’s a huge chance they’ll eat the cigarette butt. For those considering a high-frequency ultrasonic pigeon & bird scarer it is extremely important to confirm that the area in which the unit is intended to be used is not inhabited by bats. Birds are very sensitive to sound, and they use it to help them avoid predators. Oh, and another thing. Recorded sounds of predators, including larger birds that might feast on the smaller ones, can make them turn tail and fly away. If you have plans on killing birds (which isn’t recommended) don’t use this method. The frequency of most dog whistles is within the range of 23 to 54 kHz, so they are above the range of human hearing, although some are adjustable down into the audible range. Birds hearing is similar to humans, so if you can hear the sound, so can they. Ultrasonic bird deterrents is ineffective against most pest birds. Paul Anderson asked the Naked Scientists: Hi Chris and team, You mentioned in one of your podcasts about a high pitched frequency that young folk heard and it was used to keep young folk away from a shop in the UK. However, there are a number of scents that may not only be unpleasant for … While hunters are familiar with making bird calls to attract targets and birders in the field may use pishing to attract birds closer for a better look, backyard noises are quite different. Birds may seem skittish around loud noises, but there are many different sounds that can attract birds rather than scare them away. I wonder if it could also be used in graffiti prone areas? So anything that sounds like a predator will make them hesitate, if not leave the area entirely. Reporting the frequency range for hearing in dogs and other species is not a straightforward task - the "how" of determining hearing frequency ranges must first be … Is there an irritating frequency which could be used to keep birds from my plum tree? To human ears, a dog whistle makes only a quiet hissing sound. As birds will get used to the same sound repeated over and over, choose a device that has built-in change involved, for example, one that varies in frequency, duration, and sequence, and features the sounds of both birds in distress and predators looking for … How Well Do Dogs and Other Animals Hear? Birds primarily use their sight and keen sense of hearing to find food and detect predators. They do not work because they generate high frequencies that are above the bird’s hearing range. There’s almost 25% of harmful nicotine is in the butt.