Birds, although often appreciated, can cause considerable damage to our gardens and homes, not to mention the health risks associated with their droppings. Between ravaged fruit trees and noise pollution, unwanted birds require effective solutions.
This article offers you professional tips on how to repel these feathered guests in a sustainable and safe way.
Scare away birds with natural and homemade tricks
Pests and invasive birds, such as pigeons or starlings, can quickly become a nuisance for garden owners. To keep them away without harming the environment, natural and homemade methods are an excellent solution. These techniques respect the fauna and flora while effectively deterring small unwanted animals.
Homemade and natural repellents
Using natural repellents is an effective method to keep birds away without harming them. One of the little tricks is to mix water with essential oils that birds find unpleasant, such as peppermint, cade oil or lemon. Spray this mixture around your feeders or on balconies to deter birds from approaching.
Another homemade repellent can be prepared with white vinegar or chili peppers, spread around the areas to be protected, creating a strong olfactory barrier for birds.
Use a bottle
Plastic bottles can be turned into highly effective visual scarers. Fill clear bottles with water and place them around your garden. The reflections produced by the water under the sun create light effects that disturb and frighten the birds. This simple and economical method reduces the presence of unwanted birds by using movement and light, which trains the birds to pay attention to this unknown thing to them.
Place aluminum in strategic places
Hanging aluminum strips around your property can scare away birds. The movement and shine of aluminum, especially when stirred by the wind, creates an uncomfortable area for birds to avoid these spaces. Place the strips on favorite perches or around fruit trees to protect your crops. You can also have them near your roof if you want to chase birds off your roof.
Using CDs on Trees
Another visual technique is to hang old CDs in the trees in your garden. The reflections and movements of the wind-reflecting CDs that reflect light create visual anomalies that disturb the birds. This simple method is not only effective, but also a way to recycle objects otherwise destined for oblivion.
Remove food sources and perches
To prevent different species of birds from taking up residence, be sure to remove any potential food sources. This includes closing small animal feeders and regularly cleaning areas where bird droppings can accumulate. Also, eliminating potential perches, such as tree branches that are too close to your home, can significantly reduce the number of nuisance birds in your immediate environment.
For infestations of European starlings, a species that is particularly harmful in Quebec, also consult our complete guide on how to keep starlings away : flock behaviour, nesting periods and exclusion techniques specific to this species.
Other methods to scare away birds
Beyond natural and homemade tricks, there are other effective methods to keep pest birds away from your property. These techniques can include the use of modern technology, physical obstacles, or predator simulations, thus providing enhanced protection against bird invasions. It is also possible to opt for the capture of birds with the help of a professional in the event that the invasion becomes unmanageable.
Use sound or ultrasonic scarers
Sound and ultrasonic devices are modern solutions for repelling birds. These devices emit high-frequency sounds that are imperceptible to humans, but very unpleasant to birds. They can be installed around your property to cover large areas, such as gardens or fields. Patterns vary, with some mimicking predator calls to scare the birds, while others simply disturb the birds with random noises.
Install bird spikes
Bird spikes are physical deterrent barriers that can be installed on ledges, gutters, or any other potential perch. These spikes prevent birds from landing, forcing them to look for another place to rest. This is a particularly effective method for urban areas where birds tend to congregate on buildings.
Set up a net
Covering your fruit trees or vegetable garden with netting is a practical solution to protect your crops from small birds and other animals. Fine-mesh netting prevents birds from pecking at fruits and vegetables while allowing sunlight and rainwater to pass through, ensuring the health of your plants. However, beware of bird nests, as the parents may no longer be able to access them, leading to the certain death of the young.
Install a scarecrow in the garden
Placing a traditional scarecrow in your yard can create a simulated human presence that is often enough to scare birds away. Although its effectiveness may decrease over time as birds get used to it, regularly varying the appearance and position of the scarecrow can enhance its impact.
Calling on a professional
If homemade methods and simple solutions are not enough to control bird problems, it may be a good idea to call in a professional. Wildlife management experts, such as Nova Extermination, have the knowledge and equipment to sustainably keep unwanted birds away in a humane and effective manner. They can offer customized solutions tailored to the specificity of your situation.
Comparison of methods: which one to choose?
Not all methods are equal depending on your situation. The choice depends on the target species, the desired duration of effect, the available budget and the nature of the building. The table below compares the eight most commonly used methods in Quebec on the practical criteria that guide the decision.
| Method | efficiency | Duration of effect | Relative cost | Target species | Constraint |
|---|---|---|---|---|---|
| Anti-perching picks | High | More than 10 years | Moderate | Pigeons, starlings | Installation on cornices only |
| Anti-bird nets | Very high | 10 to 15 years | High | All species | Aesthetics, requires perimeter fixation |
| Repellent gels | Average | 6 to 12 months | Weak | Pigeons especially | To be renewed, sensitive to dust |
| Bioacoustic Sound Scarers | Average | With rotation | Moderate | Starlings, crows | Municipal noise by-law |
| Visual scarers (dummy hawks, balloons) | Low to medium | A few weeks | Weak | All species | Rapid habituation, requires movement |
| CDs and aluminium reflections | Weak | A few days | Very Low | Small garden species | Troubleshoot Only Method |
| Mesh mesh on soffits | Very high | More than 15 years | Moderate | All nesting | Working at height, safety |
| One-way exclusion | Very high | Final | High | Species already nested | Permit required during nesting |
For commercial buildings, the combination of netting + mesh offers the best time-effectiveness ratio. For individual residences, anti-perching spikes and soffit wire mesh cover the majority of cases with a reasonable budget.
Three test cases and their chronology of intervention
Pigeons on buildings in downtown Montreal
Typical situation: 15 to 25 pigeons that land daily on the ledges of a 4-storey building, droppings on balconies and window sills. Intervention: evaluation visit and installation of picks on all the accessible cornices, plus nets stretched on the niches on the top floor. Total duration: 1 to 2 working days. Complete disappearance of the pigeons in 3 to 5 weeks, return of some opportunistic individuals possible but without lasting settlement.
Flock of starlings near a restaurant in autumn
Typical situation: 200 to 1,000 starlings that settle every evening from October to November in the trees around a restaurant with a terrace, massive droppings on furniture and cars. Intervention: combination of bioacoustic scaring with daily rotation, deployment of scaring drones at return times, high-pressure washing of the affected furniture. Duration: 2 to 4 weeks to move the swarm to another site, with active maintenance until the end of November.
Swallows under a residential balcony in Boucherville
Typical situation: a pair of tree swallows building their nest under the balcony in April. Swallows protected by the Migratory Birds Convention Act: no intervention possible before the young fledge (usually at the end of July). Intervention: let the nesting cycle complete, then set fine nets or picks in August to prevent reconstruction the following year. Duration of the intervention itself: half a day of installation in August.
Regulation: what we are allowed to do
The Migratory Birds Convention Act is a Canadian federal law that protects the majority of native species. Three categories coexist in Quebec, with different rules for each.
- Protected species (the majority): blackbirds, swallows, chickadees, warblers, and all other native species. Capture, destruction and disturbance of active nests prohibited without a permit. Scaring and exclusion methods (before nesting) remain authorised.
- Unprotected introduced species : European starling, rock pigeon (known as city pigeon) and house sparrow. These three species are exceptions to the MBCA and can be controlled more freely, in compliance with municipal by-laws and animal welfare.
- Species with special status : gulls, cormorants, some game species. Apply for a specific permit from Environment Canada for any lethal response or capture.
Penalties for violating the MBCA can be as high as $300,000 for an individual and $1 million for a corporation, depending on the severity. Calling on a certified exterminator guarantees compliance with the legal framework.
Questions
Which birds cause the most problems in Quebec?
Five species dominate urban, residential and agricultural problems in Quebec. The table crosses habitat, period of activity, behavioural particularity and the most effective method of removal for each species.
| Species | Main habitat | Problem period | Particularity | Preferred method |
|---|---|---|---|---|
| European Starling | Urban and peri-urban | April-June (nesting) and September-November (flocks) | Species introduced in 1890, flocks of several hundred | Wire mesh 12 mm on soffits + sound scaring |
| Rock pigeon | Dense urban | All year round, peak in spring | Nests in cornices, soffits, roof overhangs | Anti-pigeon spikes + nets on balconies |
| House Sparrow | Residential | April-June (nesting) | Small size, cavity nests in vents | Mesh mesh on openings of more than 3 cm |
| American Crow | Peri-urban and rural | Summer and autumn (crops) | Very intelligent and difficult to deter in the long term | Rotating visual scaring (balloons, drones) |
| Herring Gull | Riverside, harbours | Seasonal (May to September) | Problem near restaurants and patios | Nets stretched + removal from food sources |
Is it legal to kill or capture pest birds in Quebec?
The majority of birds are protected by the Migratory Birds Convention Act, a federal law that prohibits their capture, destruction or disturbance of their active nests without a permit. Scaring and exclusion methods (spikes, nets, gels, sound devices) are still permitted, but direct disposal requires a permit issued by Environment Canada. Introduced species such as the European starling and the rock pigeon are exceptions to several rules, but still require caution.
When should you take action against birds?
The best window of intervention is between the end of February and the end of March, before nesting, which extends from mid-April to the end of July for most species. Once the nests are active, the law prohibits any disturbance and you have to wait for the young to fledge. Fall (October to November) is the ideal second window to close access points before birds seek winter shelter.
Do ultrasonic repellents work against pigeons?
Ultrasound is not very effective against pigeons and starlings. These species have limited hearing in ultrasonic frequencies and quickly become accustomed to repetitive signals. Sound devices that combine distress calls and variable electronic sounds (bioacoustics) show better results, but require regular rotation and repositioning to remain effective over time.
How to prevent birds from nesting under the roof?
Soffits, eaves and chimney joints are the most frequented locations. Sustainable protection requires three complementary actions to be applied in order.
- Anti-pigeon spikes on the ledges : maximum spacing of 2 cm between the stems to block pigeons and starlings.
- Mesh on soffit openings : 12 mm mesh to prevent access by pigeons, sparrows and starlings.
- Caulking of the chimney joints with a resistant material (expanding foam with metal mesh, or reinforced silicone).
An annual inspection in the spring prior to nesting prevents returns.
When should you call an exterminator?
There are three situations that justify the intervention of a certified professional, who has the necessary permits and the appropriate protective equipment.
- Several nests established on the building : homemade methods are no longer enough when the infestation is multi-point.
- Visible accumulation of droppings : health risk of histoplasmosis and cryptococcosis, especially in children and immunocompromised people.
- Structural damage to roofs, soffits or ventilation ducts.
Are bird nets effective?
Netting is the most effective long-term method against pigeons, starlings and sparrows. Well laid (stretched without leaving a passage of more than 25 mm, fixed on a perimeter cable every 50 cm), it physically blocks access to cornices, balconies and warehouses. The lifespan of a commercial-grade net exceeds 10 years. The main limitation is the aesthetics on some heritage buildings, where it is sometimes preferred to repellent peaks or gels.
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The methods and tricks shared here are effective in repelling birds, but for a long-lasting, hassle-free solution, the intervention of a professional is often necessary. Nova Extermination offers expert services to permanently keep pest birds away from your property. Don’t wait for the damage to pile up: contact Nova Extermination now to find peace in your outdoor space.
Areas Served
Our interventions against pest birds cover the immediate suburbs of Montreal and the South Shore. We are exterminators in Montreal (pigeons on century-old buildings, starlings on the Old Port), Longueuil, Boucherville and Saint-Jean-sur-Richelieu, where commercial buildings downtown amplify seasonal problems.
