Why would you want to scare birds away?

They are not pests or rodents invading your homes or scavenging your pantry for leftover food. They are cute creatures with beautifully decorated feathers and are easily scared by the slightest sound or even a shadow from a distance.

Unlike the birds of prey such as hawks, eagles, and crows, most birds are harmless and can be kept as house pets, locked away in cages.

They feed on small insects, which are a great help in getting rid of the pests in your home. They also play a vital part in protecting farmers’ harvests by consuming the insects responsible for damaging crops.

Having birds fluttering around your house or in the garden is a good sign of a healthy environment.

While all of this is true, there are some genuine reasons why scaring away birds would be a good idea.

Why Frighten Birds Away?

So, with all the benefits of having birds around, the question remains, why would you want to scare them away?

They are a sign of natural beauty and aid in pest control.

Unless you are a child who enjoys scaring birds, the only other reason you may want to get rid of them is that, in your eyes, they are a nuisance.

If you are not the one to rise early and greet the day, the chirping sounds of birds will not be music to your ears and will wake you up sooner than your wake-up time. Sometimes the bird may even peck on your window, disturbing your beauty sleep.

When you open the window curtains, you may see a flock of birds on your balcony immediately flying away from your unexpected presence, but they will be back.

Also, you may notice that your balcony is full of bird droppings. Being a clean freak, the sight of this mess may irritate you a lot, and if you don’t clean it regularly, it may start to stink.

Bird droppings will not only be on your balcony but on your rooftop, garden, and windows. Birds and their droppings carry several diseases.

You would be spending a good chunk of your income on house cleaning. If you do not take care, your house can become a breeding ground for various diseases and germs.

Some people have even complained about bird droppings being stuck in the drain pipes, leading to a lot of worries.

Farmers may face a threat if they see birds poking around their crop fields.

Even though birds eat the insects and other pests that may destroy the crops, sometimes they may also be one of the animals hurting the agriculture sector.

According to research, there are about 15 species of birds that have a negative impact on crops. For this reason, the scarecrow has been the oldest form of bird fright technique.

A dummy stuffed with hay and straws, wearing clothes was an effective method to drive away birds, especially crows away. However, it requires a lot of devotion, time, and effort.

With the advancement of modern technology, farmers and household consumers are looking for different and more effective ways to spook birds away. That’s where ultrasonic devices can some into play.

What is an Ultrasonic Repellent?

The animal ultrasonic repellent is a device, capable of producing high-frequency ultrasonic sound waves to scare away rodents, insects, and other pests.

The ultrasonic device aims to disorient or irritate any animals nearby. It causes them to run away from the place they are currently residing and look for other safe places to live.

Instead of a spray repellent that can kill insects instantly, the ultrasonic repellers are non-lethal, but the high sound may injure the animal. Let’s take a look at how an ultrasonic bird repeller works.

How Does an Ultrasonic Repellent Work?

An ultrasonic bird deterrent works as a plug-and-play device. Simply plug it into the electronic outlet, power it on, and it will start emitting high-frequency sounds.

Some of these ultrasonic bird repellents may be battery-operated devices.

Once powered on, the noise generated by the ultrasonic bird scarer will target the psychological response, which will be very discomforting, causing any rodents or pests in that area to flee.

Does Ultrasonic Bird Repeller Actually Work?

There is some debate on the effectiveness of the device.

According to research and scientific studies, these commercially available ultrasonic repellents do work in getting rid of the animals, but not every kind is affected.

So, the results are not 100% positive, and regarding bird species, it is a different matter.

Does Ultrasonic Work on Birds?

If you are using ultrasonic pest repellers for pest birds, you probably just wasted your money and time. The ultrasonic device does not work on birds.

Only a few species hear the ultrasonic sound causing them to fly away, but most birds do not hear the frequency no matter how high the sound or range is.

The University of Nebraska carried out research trying to understand the behavior of birds around ultrasonic bird devices.

When powered on, most of the birds did not respond to the bird deterrent sound and carried out their usual activities. Further research revealed that most birds have hearing abilities matching that of humans.

Since humans cannot hear the ultrasonic sound, neither can birds, rendering it inadequate for even the best ultrasonic bird repeller.

So, it turns out that birds are not scared off by the ultrasonic animal repellent. If you have a pet bird at home and are using this device, your pet will remain unaffected. However, it is wise to observe its behavior.

If you notice any changes, such as feathers falling out, loud chirping, or unusual conduct, it means the high-frequency sound is hurting your pet bird. Immediately take your bird to the vet to get it examined.

What Animals Do Ultrasonic Devices Work On?

Ultrasonic devices can still be a great investment as ultrasonic repellers work on quite a few different creatures.

If you need to deter the likes of moles, gophers, mice, squirrels, and cats then an ultrasonic animal repeller can be a great idea.

Most ultrasonic repellers are aimed at these smaller creatures as such devices emit those ultrasound waves that they can hear but us humans can’t.

While ultrasonic bird repellents aren’t a good idea, these devices are great if you have problems with other animals.

Why are Ultrasonic Animal Repellent Ineffective for Most Birds?

The reason is that the ultrasonic sounds are high-frequency sound waves above most birds’ hearing range. They can’t be affected by what they can’t hear.

The animal repellent is designed for animals, not for birds. You need to apply other types of bird repellent devices and techniques to frighten birds away from your premises instead of an electronic bird repeller.

Types of Birds Scared by Ultrasonic Animal Repellent?

Unfortunately, there is no scientific proof that ultrasonic bird repellers will work against birds.

After numerous tests and research, scientists have discovered there are only a few species irritated by ultrasonic sound. There is no list guaranteeing the number or the type of birds affected.

So, if you need to frighten birds away, there are plenty of other humane ways you can do it. If birds are posing a problem for you, read on to find out the best way to get rid of them without trying ultrasonic frequencies.

Is There a Device That Scares Birds Away?

Yes, there are a good number of devices available in the market for home and commercial use that don’t use an ultrasonic repeller.

You can opt to repel birds away from your premises without the use of electronic devices.

Motion-activated sprinklers

The water sprinklers are an excellent way to get rid of birds.

Not only will they fly away from your garden, but at the same time, you will also be watering the grass and plants. It’s a solution which won’t disturb any other animal species.

For this to work successfully, you need to purchase and install motion sensor sprinklers. When birds come in detecting range of the sensor, the motion-activated sprinkler will spook them with a burst of water.


  • The device is not only effective against birds, but all sorts of undesirable animals, rodents, and pests.
  • It is a two-in-one technology. You can water the garden and minimize the animal problem.


  • The drawback is that it is for garden use only.
  • The birds can still invade your balcony and rooftop, leaving bird droppings everywhere.
  • It is motion activated; this means if there is no intruder in the garden the sprinkler will not work. So, you cannot rely on the sprinklers to effectively water your garden.

Laser bird repeller

A laser bird repeller is an effective technology commonly used in the agriculture sector to frighten birds away from crop fields.

It is a manual or fully automatic device and helps reduce bird presence by a significant percentage.

The manual device is a handheld laser repellent. Power it on and point the lasers where the birds are perched. Those pesky birds will fly away once the device emits the laser.


  • Long-range to discourage birds
  • Works well in daylight
  • Some devices have a red dot sight that accurately points the laser at the targeted birds
  • Pocket size device, easy to carry anywhere


  • You have to go this regularly to keep the birds away

Sonics for Birds

Ultrasonic animal repellent does not apply to birds, so you should go for sonic alarm. They are designed to frighten birds away by emitting a distress alarm.

On hearing this, the birds stay clear of that area believing there is a threat.

Birds have a similar hearing ability matching that of the human ear. So, the device does not release any ultrasonic waves targeting the birds hearing range.

It is a distress alarm equipped with different audible sounds for various species of birds.

Depending on the bird you want to get rid of, for example, pigeons, sparrows, etc. select the alarm from the settings, it will play the sound and the birds of the particular species will believe there is a threat nearby. Turn the device on and leave it in the populated area.


  • Can be placed anywhere, garden, rooftop, balcony
  • Various distress alarms for different species
  • Volume adjustment


  • Not suitable for large areas
  • You can also hear the sound, and it may become irritating
  • Contributes to noise pollution

Other Ways to Stop Birds

Bird Spikes

You have an option to choose between plastic and stainless steel. The stainless steel and plastic spikes are available in different sizes and colors.

You can purchase the one according to your needs, however, both of them serve the same purpose. The major difference is the quality of the product.

The stainless steel bird spike is worth the money because it has a 10-year guarantee, so it will last for a very long time.

It is flexible, and the spike can be broken down into smaller segments. Excellent for setting it up in an uneven area or curved area. You would need to glue it so that it sticks and doesn’t come off.

The plastic spike needs to be glued the same way as the stainless steel pike. The only difference is that it has a 5-year guarantee which is still very good.

A few critical facts you should be aware of:

  1. These spikes only work for large birds, so if your balcony is infested with small size birds, then you will not be able to deter birds in this manner.
  2. Don’t place them in nesting areas. Even though large birds can’t perch on the spikes, they will build their nest over them.


  • Long-term use
  • Durable and flexible
  • It can be separated into smaller pieces
  • Glue it where you need it


  • Not suitable for small birds because they can perch on the spikes.
  • Placing spikes on the nesting area will not stop them and they will make a nest on top of the spikes.


Cats are a huge threat to birds. On seeing a cat patrolling the area, birds will stay clear because, for them, cats are a clear and present danger.

Cats are predators by nature and will hunt and kill birds for food so they are much better than ultrasonic devices.


  • A natural and effective way to frighten birds
  • With these predators constantly roaming about, birds will learn to stay away from your premises
  • You will have a pet to play with


  • There are costs of owning a cat
  • You need to make routine vet appointments and get your cat vaccinated
  • Bird droppings will not be a problem, but you would have to clean after your cat

Remove food sources

Birds are usually attracted to an area where they can find food and water. Seed-bearing flowers, trees, and shrubs are a common food source for birds.

If you have a water fountain in your garden, you probably see birds splashing in it, taking a bath.

Liquid bird repellent

Designed for home and commercial use, the liquid bird repellent is a highly effective non-toxic chemical spray to stop birds from making your home their nesting and feeding ground.

Treating your garden, balcony, rooftop, and other bird-infested zones with this liquid will successfully drive birds away.

The spray releases a non-toxic smell that the birds don’t like. It functions like tear gas, irritating the eyes and throat, making them fly away to search for another safe environment. It is non-lethal, so there are no permanent or long-lasting side effects.


  • Highly effective in getting rid of birds
  • The spray releases a non-toxic smell that annoys only birds
  • Humans and other animals cannot smell it
  • Harmless for all living life, even birds. It is meant to irritate and drive them off
  • The spray does not leave behind any residue


  • None

Bird netting

Bird netting is the process of wrapping your building in a net or covering a certain area to prevent birds from entering.

Factories and warehouses are usually covered with bird nets to prevent them from making nests inside a work area, which may prove harmful to both birds and humans.


  • An effective way to block birds from coming in
  • It can cover a large area
  • A quality net will last for a long time, withstanding weather fluctuations


  • You cannot set it up yourself and would require experienced personnel to get the job done
  • Any hole or gap in the net will render it useless, as the bird will make use of the opening
  • Sometimes, the birds may get stuck to the net when trying to come in

Owl decoy

We all know how a scarecrow is one of the most famous pest control products.

Instead of having a large scarecrow around your home, you can look for modern deterrent technology instead. One of the best is an owl decoy such as the one from Thanos.

owl decoy

They don’t make any annoying sounds but instead have lasers for eyes which are much more effective that the best ultrasonic repellers.

Those lasers work in conjunction with the owl appearance which is sure to frighten brids away. No external batteries are required as it has solar rechargeable batteries.


  • Birds are naturally scared by owls
  • Laser lights doubt the efficiency
  • Attractive garden ornament


  • May be unpractacle for tight spaces such as balconies

Final Thoughts

So how do ultrasonic bird repellers work?

Well, the answer is they don’t.

An ultrasonic deterrent doesn’t really work for them and birds fly freely around your home even with them.

They emit sound that can scare away many creatures but birds won’t be bothered by the ultrasonic waves.

Farmers and growers have the immediate need to frighten birds away to protect their crop fields. Big multinational companies have been working on various solutions to solve the bird problem.

Owl decoy repellent has been the most successful product, especially for farmers. Other companies, such as factories and warehouses typically go for laser bird repellent or bird netting.