ADLER Bird Free Gel - Your Pigeon Control Solution

Pigeons can be a property manager's worst nightmare... they invade our buildings, build their nests in hard-to-reach places and they breed like crazy. Their excrement is hazardous and unsightly - and in most cases it becomes a very costly maintenance issue for property owners. There are various controls on the market with varying levels of success - keep reading to find out about the ADLER Bird Free Gel Pigeon Control solution.

Bird Free Gel – How it works

Bird Free Gel (BFG) is a harmless, safe and very effective pigeon control product used to deter feral pigeons and many other birds from roosting or nesting on buildings and other structures.

BFG is supplied in ready-to-use plastic dishes (65mm diameter; 8mm high). These come in a plain or magnetic option and are affixed to surfaces with commercially available silicone adhesive  – or direct to metal substrates via an inbuilt magnetic strip (on the BFG Magnetic version)

The Gel works by attacking the Optical and Sensory senses in birds – in simple terms; If you are a bird, it looks like FIRE and smells horrible.

Where can it be used?

  • Under and around HVAC units
  • Ledges / Beams / Underside of Canopies / Parapets / Window sills
  • Light Poles
  • Flat roof areas (i.e. side roofs and dormers)
  • High rise garden installations

Where can it not be used?

  • There aren’t many places BFG can’t perform – in many cases, it comes down to the cost of the solution versus the cost of the problem – our representatives will visit and ascertain the suitability of Bird Free Gel for your property.

How long does it last?

  • Bird Free Gel was been installed on an exposed chimney pot in central London 6 years ago – and is still 100% effective in spite of being covered in dust and exposed to the elements. In a protected environment it is anticipated BFG will last many years without any need of replenishment. It is currently installed and protecting buildings, stadiums and other large structures all over the world.

Once a landing or nesting area is cleaned and treated – they stay away. It is as simple as that.

ADLER have trained installers to treat any commercial property throughout NZ. We guarantee Bird Free Gel for 2 years when installed by trained Adler technicians

Alternatively, you can purchase the trays in cartons of 15 units for *self-installation. Click on the link below to go to our contacts page or email us right now to inquire; 

Read more in our Knowledge base 

*Adler does not service private residential properties (houses).


See Bird Free Gel in action here


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Pigeons- Facts and Figures

The Feral Rock Pigeon

The feral or rock pigeon is well-established throughout New Zealand and is a common sight in cropping regions, cities and large towns. Some people enjoy seeing and feeding pigeons, particularly in urban areas, whereas others view them as vermin equivalent to rats.

Feral pigeons can be public health pests. They can accumulate wherever there is food and shelter, and can take up residence almost anywhere, including around houses, city buildings or schools. As well as being a nuisance and causing extensive damage to property, feral pigeons can also pose a risk to human health.

Damage Caused by Pigeon Problems

Pigeon control is important due to the damage and disease problem these birds often create. The uric acid in pigeon faeces is highly corrosive and can cause extensive damage to metals, soft stone, painted surfaces and other substrates it sits on for long periods. Debris from flocks of problem pigeons often build up, backing up gutters and drains which can cause flooding and roof damage.

Nesting materials and other debris has caused failures in machinery, especially rooftop air conditioning units which are a prime nesting spot for pigeons. Other frequent pigeon problems include slip and fall risk from feces or debris, plus an unclean, dirty company image. Many companies also retain significant clean up costs due to the pigeon problems they don’t resolve.

Problems and health risks

The presence of pigeons can result in a range of problems.The bacteria, fungal agents and ectoparasites found in pigeon droppings are responsible for a host of serious diseases, including histoplasmosis, encephalitis, salmonella, meningitis, toxoplasmosis and more. The list below are some of the main pigeon problems; 

  • they attract ticks, cockroaches and rats
  • damage to buildings and monuments due to the highly corrosive nature of acid in pigeon droppings
  • damage to property by pigeons roosting/breeding in roof spaces, rolled steel joists and inside factory units
  • debris from roosting flocks building up, causing gutters and drains to block, damage to roofs and other structures, and creating potential fire hazards
  • extensively damaging air-conditioning units and other rooftop machinery – including airborne ingress to office spaces through HVAC units
  • pigeon droppings in/on industrial, commercial, and domestic buildings causing hygiene concerns
  • introducing weeds and disease through pigeon droppings
  • increasing the risk of disease and parasite transmission between feral, domestic and seabird populations
  • escalating costs through public liability insurance from slipping on dropping build up.

Does your property have a pigeon problem?        

Many property owners do not realise their building has a feral pigeon problem. Factors which indicate a pigeon problem on your property include the following:

  • 1 or 2 pigeons frequenting your yard/property
  • an accumulation of pigeon droppings on or around your property.

Once you recognise your property has a pigeon problem you will need to take action to prevent pigeons from roosting and nesting on/in the building. If no action is taken the problem may escalate and more cost will be involved. In the majority of cases, if corrective action is taken, the property should be pigeon proofed indefinitely.

Control techniques

Products such as netting (bird wire or mesh), prevent pigeons from landing or roosting on building surfaces. This can be very effective in some cases, it has a few limitations, however;

  • netting encourages spiders and webs
  • it restricts access for maintenance (window cleaning etc)

Other methods include:

  • wire coils or pigeon spikes
  • scare devices such as a combination of audio or visual deterrents
  • application of gel products that pigeons find sticky and uncomfortable to stand on.
  • Optical / Sensory Gel (i.e ADLER Bird Free Gel)

Pigeon facts

  • They have a life span of 3 to 4 years in the wild and up to 16 years in captivity.
  • Pigeons are monogamous. A mating pair will have 3 to 4 broods per year of 1 to 2 eggs each. (Ten pairs of pigeons can produce up to 40 more breeding birds in 12 months – do the math on that!!)
  • Pigeons do not migrate. They stay near their birth site (which may be your building).

In short – don’t let pigeons get out of control on your property!