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Bird-Free Gel System

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Bird Free is an advanced method of bird control based on the science of bird behaviour.
Bird behaviour is instinctive. It is conditioned by basic needs: food and water, shelter, warmth, security (from predators). By means of sensory stimuli that alter birds’ instinctive responses, Bird Free:

  • Changes birds’ behaviour (rather than acting as a physical barrier)
  • Causes resident birds to abandon long-standing habitats
  • Shows immediate results
  • Eliminates severe infestations
  • Is proven to be effective for up to 5 years
  • Causes no harm to the birds themselves

Invicta’s Bird Control Process



Invicta will attend your site to investigate what species of bird is causing you issues. We will listen and understand exactly what you would like to achieve in controlling the bird issue on site.



We will produce a detailed survey report which will outline what we recommend to keep your site bird free. Within the report we will include costs to carry out each of our recommendations.



Once works have been agreed with yourself, we will agree a date of attendance convenient with yourself. Risk assessments, Method statements & Training certification will be sent over before we attend site.



Our Fully trained bird control teams will attend site to complete the work agreed. We will then invite the site contact to inspect the work and a detailed report will be emailed over to show that all works have now been completed.

Vikki M
Vikki M
First call enquiring about a wasp nest three storeys up, and within two hours a very polite tech (Chris) had arrived and dealt with it. Reasonably priced, great service!
Michael Fletcher
Michael Fletcher
2nd time around this time for wasps Excellent service very friendy and professional highly recommend
stuart banks
stuart banks
Great to meet Norman today prompt, very professional and knowledgeable service, highly recommend for extinguishing the wasp nest 🐝🐝🐝🐝🐝
Simon Newsham
Simon Newsham
Chris was absolutely amazing. No fuss and very professional. Arrived on time. Identified the huge wasp nest straight away (and showed me before clearing) and then speedily got rid of it. No fuss and such an efficient service and very friendly and prompt. Took the nest and all rubbish away. Highly recommended!
Joanne Kipling
Joanne Kipling
Absolutely excellent service turned up when he said and explained exactly what he was going to do was even considerate of the dog i the house
Catherine Batten
Catherine Batten
Brilliant Service, Prepared for the task at hand (wasps), which meant that is was efficient and quick. Clear instructions given to myself for safety. Very happy with this service.
Frank Robinson
Frank Robinson
very knowledgeable, friendly, highly recommended
David James
David James
Excellent service. Contacted Invicta upon discovering a wasps nest at the back of our property. Attended promptly, dealt with the issue very quickly and gave suitable advice regarding pets / children until remaining wasps were no longer in / around the nest area.
Gemma Keenan
Gemma Keenan
Norman came to treat what turned out to be an underground wasps nest. Great service, quick and efficient would highly recommend.
Steven Graham
Steven Graham
Highly recommend these guys, had 2 wasp nests in my loft, I rang on the Monday and Norman came out first thing Tuesday morning to remove them, only took him 20mins, quick and professional service easily worth a 5 star review.

How it works

Bird Free is a pigeon repellent formulated to stimulate three senses of the bird: sight, smell and touch. These three stimuli combine to create avoidance learning in birds.


Bird Free’s proprietary gel mixture contains pyranine, the same colouring agent used in highlighters. This fluoresces when excited by UV radiation, causing the gel to glow with ultraviolet light. Invisible to humans, the UV light creates an impression on the bird similar to shimmering fire (hence the name Fire Gel™), causing it to avoid landing on surfaces treated with Bird Free. This avoidance reaction is observed immediately after Bird Free is applied.


Bird Free contains peppermint oil, long known as an effective bird repellent. Studies have shown that the menthol contained in peppermint derivatives acts as a primary repellent in birds due to its action on olfactory and trigeminal nerve endings located in the bird’s nose, mouth and eyes. (The trigeminal nerve is closely related to the olfactory nerve. It conveys facial sensations to the central nervous system.) The odour quality and pungency of the menthol is sensed by the olfactory and trigeminal systems of the bird, respectively, and creates a strong aversion response.

Synergy between visual and olfactory stimuli:

In effect, these two stimuli, visual and olfactory, act together in synergy, warning the bird not to approach. As a result, birds quickly learn to keep away from surfaces treated with Bird Free repellent.


While most birds are deterred by Bird Free’s visual and olfactory stimuli and will not come into contact with the gel, where nests have been removed and treated with Bird Free a nesting bird will often be seen attempting to return to the nesting site immediately after Bird Free has been applied, causing it to touch the gel, which is very sticky.

Due to the gel’s high viscosity the bird will not be harmed. However, birds abhor anything sticky on their feathers, so the bird only needs to touch the gel once and it will never return.  

Call one of our experts to discuss your Bird-Free application, we are happy to help.                                                                                  

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