Alfred Hitchcock couldn’t have choreographed it better.
Every sunset since mid-December, the sky above St. Luke’s Hospital in Fountain Hill turns black with the fluttering swarm of 5,000 to 10,000 crows that fly from feeding grounds around the Lehigh Valley to roost on a nearby wooded knoll.
During their noisy, cawing arrival and even noisier pre-dawn departure — and much of the time between — the large birds have been bombarding the hospital, homes, streets, cars, woods and, yes, residents themselves with the natural end-result of their daylong feedings.
The problem has gotten so noxious that the U.S. Department of Agriculture has been summoned to harass the birds until they roost elsewhere.
Beginning at dusk today, the USDA and members of St. Luke’s security staff will roust the crows with loud explosives and whistling pyrotechnics, and chase them with amplified crow distress calls until theyflee.
“It’s not so much that they’re causing a lot of problems, it’s just that they’re a health hazard. With 5,000 birds, that’s a lot of bird droppings, and that can become a potential health hazard,” said hospital spokesman Steve Andrews.
The most significant health threat from crow droppings is a fungal respiratory disease called histoplasmosis, according to Thomas N. Tomsa Jr., district supervisor for USDA Wildlife Services.
“The spores can become airborne, and this respiratory fungal disease can develop,” Tomsa said.
Though there are no indications that the birds have brought the disease to the wooded area behind the hospital, St. Luke’s officials are taking no chances.
St. Luke’s Security Director John Hrubenak said the hospital installed an amplified distress-call sound system two weeks to chase the birds from the roof, which has ventilation ducts and a helicopter landing pad.
“We didn’t want them hanging around on our heliport. We just didn’t want to take any chances,” Hrubenak said. “Certainly there was concern about a flock flying into the path of a helicopter.”
So far, the distress calls have kept the birds about 300 feet from the roof, he said.
It’s not unusual to see so many crows in one place, according to Kevin J. McGowan, a crow expert at Cornell University. American crows are most noticeable when the short winter day comes to an end. Streams of them can be seen flying high overhead, with a sense of purpose.
Thousands or tens of thousands converge at a winter roost, congregating from as far away as 20 miles. In the ’70s, a flock in Fort Cobb, Okla., was recorded at 2 million.
They like urban areas because the artificial light helps protect them from the great horned owl, their natural enemy, and because urban areas are warmer than the countryside.
Crows that breed near the roost site mix with migrants from thousands of miles away.
Besides raising concerns at St. Luke’s, the birds have created problems for residents living near the wooded knoll and hospital employees using the lower parking lot off Ostrum Street.
The tree-lined path from the front door of Kim Gencarelli’s home at 500 Ostrum St. has turned into a nightly obstacle course.
“You’ll walk out of your house and get hit or nearly hit with their stuff,” Gencarelli said. “In order to keep clean from my door to my car, I need an umbrella.”
The daily bombardment has also taken its toll on cars. The matter had been compounded by voluntary water rationing, which limited car washing.
“On my way to the car wash, I had people staring, pointing and laughing. My car was covered. You really couldn’t see it was brown, it was white,” Gencarelli said.
On nearby Brighton Street, Robert Guerriere finds nightly challenges while walking his dog.
“I have to look up to see exactly where they are so I don’t get dropped on,” Guerriere said.
The birds’ nightly droppings are so prolific, Guerriere said, “It sounds like rain. It’s not fun. It stinks and smells.”
But not all have had their feathers ruffled.
Ed Sinkler, who lives a block from Gencarelli, said birds are supposed to be in the woods and wondered where they would go when they left.
“It’s sort of majestic watching 10,000 crows come in. They make a nice little chorus at 5:30 in the morning,” Sinkler said.
“I wish there was a way to lure them somewhere else. That would be a better solution than to scare them up and let them go. These are woods and … that’s where they’re supposed to be.”
Tomsa acknowledges the birds may make trouble at another location but prefers to address one problem at a time.
Before this year, the birds roosted in the wooded knoll and on the Hill-to-Hill Bridge. But their numbers were only a fraction of what they are this year.
In December, Tomsa said, his agency harassed a similar number of crows that had been dumping all over the Capitol complex in Harrisburg. It took about five nights of harassment to make them fly the coop. Similarly, Tomsa said he expects the birds will be flushed from their Fountain Hill roost by the weekend.
Even though the nightly two-hour bursts of sound should be enough to force the crows to take flight, the noise will be muffled in the hospital and homes and should present a fraction of the nuisance the birds cause, according to Tomsa.
In a letter to Hrubenak, Tomsa wrote that once the birds are gone, they probably won’t return this winter. But they may be back next year.
Pigeon Patrol
Pigeon Patrol Products & Services is the leading manufacturer and distributor of bird deterrent (control) products in Canada. Pigeon Patrol products have solved pest bird problems in industrial, commercial, and residential settings since 2000, by using safe and humane bird deterrents with only bird and animal -friendly solutions. At Pigeon Patrol, we manufacture and offer a variety of bird deterrents, ranging from Ultra-flex Bird Spikes with UV protection, Bird Netting, 4-S Bird Gel and the best Ultrasonic and audible sound devices on the market today.
Best Types of Pigeon Repellent
Bird Spikes– Pigeons can’t land on surfaces with bird spikes—perfect for ledges, sills, signs, and fences.
Shop Bird Spikes: https://www.pigeonpatrol.ca/bird-spikes/
It is nothing less than annoying if pigeon droppings land in the garden. It is all the more serious when the droppings are contaminated with radioactivity.
The environment campaigners Greenpeace are calling for an end to all nuclear reprocessing at the Sellafield nuclear plant in Cumbria following the publication of an official report yesterday. It discovered that wild pigeons roosting at the site and contaminated with radioactivity had carried it to a garden two miles away in Seascale.
The pigeons, described by Greenpeace as “flying nuclear waste”, were contaminated after roosting in old buildings at Sellafield. They began feeding in the garden over a two-year period and the soil was contaminated to such an extent that the garden was dug up by British Nuclear Fuels Ltd (BNFL) and sent to a nuclear dump along with a number of garden gnomes. The pigeons were destroyed last year. The report, published by the Committee on Medical Aspects of Radiation in the Environment (Comare) and the Radioactive Waste Management Advisory Committee (RWMAC), acknowledged that the contamination of the garden was not significant.
The radioactive dose received by the residents was about half the annual limit for members of the public while the doses received by neighbours in adjacent properties were “not of any radiological concern”, according to the report.
But the report recommends that further research into possible contamination at nuclear sites, including the risk posed to other wildlife such as insects and other birds should be carried out. It also reported that authorised discharges of radioactive gases from Sellafield’s chimneys might have caused some of the radiation contamination.
Prof Bryn Bridges, chairman of Comare, said it was possible the doses could have been higher. He described the contamination as a “worrying discovery”.
BNFL apologised for the contamination and said it was pleased the report acknowledged the steps it had taken to remedy the situation. It also accepted the report’s criticism that mismanagement was at the heart of the problem.
In a statement yesterday, BNFL said it had committed considerable resources to resolve the issue: “This involved culling the birds, controlling the birds’ feeding, restricting access to these older buildings and completing a site habitat control programme. A programme of remediation was also carried out in Seascale, after discussion with the property owners and the regulator.”
Greenpeace described decisionmaking at Sellafield as “hopelessly inadequate” and said the problem did not die when BNFL culled the birds. Dr Helen Wallace of Greenpeace said: “Nuclear waste could still be spreading through wildlife into people’s homes and gardens. Today’s reports warn that other wildlife, such as insects and doves, may also be involved in the spread of nuclear waste from nuclear sites into people’s homes and gardens.”
BNFL should be made to properly contain and monitor all existing waste, she added.
Pigeon Patrol
Pigeon Patrol Products & Services is the leading manufacturer and distributor of bird deterrent (control) products in Canada. Pigeon Patrol products have solved pest bird problems in industrial, commercial, and residential settings since 2000, by using safe and humane bird deterrents with only bird and animal -friendly solutions. At Pigeon Patrol, we manufacture and offer a variety of bird deterrents, ranging from Ultra-flex Bird Spikes with UV protection, Bird Netting, 4-S Bird Gel and the best Ultrasonic and audible sound devices on the market today.
Best Types of Pigeon Repellent
Bird Spikes– Pigeons can’t land on surfaces with bird spikes—perfect for ledges, sills, signs, and fences.
Shop Bird Spikes: https://www.pigeonpatrol.ca/bird-spikes/
Eighteen frozen pigeons were recently shipped north to the suburban Albany labs of New York State wildlife pathologist Ward Stone. The birds, poisoned by pesticide-spiked rice, were a familiar sight to the medical examiner. He had already autopsied several victims, and this latest batch of corpses, found scattered around a supermarket parking lot in the Bushwick section of Brooklyn, put the murder tally in the hundreds – and confirmed Stone’s suspicion that he is on the Carbofuran-laced-birdseed trail of an avian serial killer.
The pigeons were added to a pile of more than 400 New York City birds Stone has examined over the past two years. He’s been cataloguing causes of death in our 126-species bird habitat, and his pigeon report joined a folder filled with more exotic necropsies: a Jamaica Bay loon with its waterproofing washed away by detergent; a swan found in Central Park Lake with a lead sinker stuck in its gizzard; two red-tailed hawks from Mary Tyler Moore’s building; and a black-crowned night heron from Prospect Park loaded with four pesticides.
Besides the vigilante avicides and high-profile mortalities, Stone has examined dozens of birds killed by the commercial agent Avitrol, used legally by exterminators all over the city. “You can get caught up in the ‘Carbofuran Killer,’ but Avitrol is what’s killing most of the birds in New York City,” argues anti-Avitrol activist Mary Kelly, whose outrage at the sight of dead pigeons plopping to the pavement from lofty aeries on York and 86th Street in 1997 prompted Stone’s larger inquiry. After autopsying Kelly’s birds, Stone recommended a statewide ban on Avitrol (his employers at the state Department of Environmental Conservation issue licenses to exterminators). He has also found the toxic substance in at least one peregrine falcon – evidence, he says, that the agent is passed to other birds up the food chain, since peregrines love pigeon pie.
Thanks to Stone and Kelly, avian awareness has roosted in Albany: An Avitrol-ban bill flew through the State Assembly last year but crashed in the Senate under pesticide-lobby pressure. This year’s version would have given individual localities the right to ban the pesticide, but Governor Pataki clipped the bill’s wings when he vetoed it at the end of July.
Stone’s activism also prompted wildlife rehabilitators, bird-loving bureaucrats, and other nature freaks to begin scooping and sending the dead crows, starlings, and grackles in their neighborhoods and parks, and Stone plans to release his first-ever comprehensive city bird-necropsy report shortly. He says he was surprised at the “incredible array” of local birds he encountered, “much more than a country boy like me could have expected,” and cites improved water quality – hell, there are cormorants cruising in the Gowanus Canal – as a critical factor in maintaining the city’s “splendiferous” habitat.
The pathologist has lost track of the number of times he’s been compared to seventies television hero Quincy, M.E., but he has his own unsolved mysteries to take care of: Those Brooklyn birds, it turns out, were done in by a copycat using a different pesticide (Methomyl) and bait than the Carbofuran Killer. Still, says the scientist, a bit optimistically, “only two purposeful poisoners in a city of millions – that’s not bad.”
Pigeon Patrol
Pigeon Patrol Products & Services is the leading manufacturer and distributor of bird deterrent (control) products in Canada. Pigeon Patrol products have solved pest bird problems in industrial, commercial, and residential settings since 2000, by using safe and humane bird deterrents with only bird and animal -friendly solutions. At Pigeon Patrol, we manufacture and offer a variety of bird deterrents, ranging from Ultra-flex Bird Spikes with UV protection, Bird Netting, 4-S Bird Gel and the best Ultrasonic and audible sound devices on the market today.
Best Types of Pigeon Repellent
Bird Spikes– Pigeons can’t land on surfaces with bird spikes—perfect for ledges, sills, signs, and fences.
Shop Bird Spikes: https://www.pigeonpatrol.ca/bird-spikes/
Many bird species are attracted to landfills which take domestic or putrescible waste. These sites provide a reliable, rich source of food which can attract large concentrations of birds. The birds may cause conflicts with human interest with respect to noise, birds carrying litter off site, possible transmission of pathogens in bird droppings and the potential for birdstrikes. In the UK there is an 8 mile safeguarding radius around an airfield, within which any planning applications must pass scrutiny from regulatory bodies to show they will not attract birds into the area and increase the birdstrike risk. Peckfield Landfill site near Leeds, West Yorkshire was chosen for a trial of a netting system designed to exclude birds from domestic waste landfills. The site was assessed for bird numbers before the trial, during the netting trial and after the net had been removed. A ScanCord net was installed for 6 weeks, during which time all household waste was tipped inside the net. Gull numbers decreased on the site from a mean of 107
4 per hourly count to 29 per hourly count after two days. The gull numbers increased again after the net had been removed. Bird concentrations in the surroundings were also monitored to assess the effect of the net. Bird numbers in the immediate vicinity of the landfill site were higher than those further away. When the net was installed, the bird concentrations adjacent to the landfill site decreased. Corvids were not affected by the net as they fed on covered waste which was available outside the net throughout the trial. This shows that bird problems on a landfill site are complex, requiring a comprehensive policy of bird control. A supporting bird scaring system and clear operating policy for sites near to airports would be required.
Pigeon Patrol
Pigeon Patrol Products & Services is the leading manufacturer and distributor of bird deterrent (control) products in Canada. Pigeon Patrol products have solved pest bird problems in industrial, commercial, and residential settings since 2000, by using safe and humane bird deterrents with only bird and animal -friendly solutions. At Pigeon Patrol, we manufacture and offer a variety of bird deterrents, ranging from Ultra-flex Bird Spikes with UV protection, Bird Netting, 4-S Bird Gel and the best Ultrasonic and audible sound devices on the market today.
Best Types of Pigeon Repellent
Bird Spikes– Pigeons can’t land on surfaces with bird spikes—perfect for ledges, sills, signs, and fences.
Shop Bird Spikes: https://www.pigeonpatrol.ca/bird-spikes/
A town south of London is facing a bombardment of bird poop brought on by a “growing” influx of winged interlopers that officials just don’t have an answer for.
“You walk around and they are cooing above you. All the babies are squawking, and then they could poo on you,” Ashford business owner Vince Monticelli told South West News Service.
“Our town has been taken over by seagulls and pigeons.”
The Ashford Borough Council has been gliding around the issue after walking back April’s plans to get a hawk that would ward off the unwanted new residents in the Kent nabe.
“We have researched carefully, and following consultation with relevant stakeholders and local businesses, we believe at this time there is an insufficient need for a hawk service to be introduced to the town center,” a government spokesperson said.
The situation is “under review” and could include a four-month trial with the predatory bird, though the idea has reportedly been dropped for now.
Initially, the locale also felt that a hawk being walked around by a professional caretaker also would make for an especially appealing “attraction.”
Monticelli, also, stood firm: “I think they are an issue and the council probably should’ve got the hawk.”
Other locals, like Russell Green, doubled down on the problems pigeons are causing, too.
Troves of pigeons and seagulls are pooping all over an English town.KM / SWNS
“I don’t see why they couldn’t get [a hawk] in for a couple of days a month,” he said. “Once pigeons and seagulls know there is a hawk here, they won’t bother coming back.”
Another man who works in the town, Connor Moon, suggested the winged visitors “don’t do us any harm” and blamed the poop-apalooza on bird brains who feed the avians, inadvertently inviting them to come back — with friends.
Pigeon Patrol
Pigeon Patrol Products & Services is the leading manufacturer and distributor of bird deterrent (control) products in Canada. Pigeon Patrol products have solved pest bird problems in industrial, commercial, and residential settings since 2000, by using safe and humane bird deterrents with only bird and animal -friendly solutions. At Pigeon Patrol, we manufacture and offer a variety of bird deterrents, ranging from Ultra-flex Bird Spikes with UV protection, Bird Netting, 4-S Bird Gel and the best Ultrasonic and audible sound devices on the market today.
Best Types of Pigeon Repellent
Bird Spikes– Pigeons can’t land on surfaces with bird spikes—perfect for ledges, sills, signs, and fences.
Shop Bird Spikes: https://www.pigeonpatrol.ca/bird-spikes/
I think that’s the first time I’ve ever used the word “poop” in a blog title, but I digress…
The infamous “Bird Poop Building” on Yonge Street has been vacant for 25 years, and surprise, surprise – it’s going to be turned into a condo…
If you know me, you know that I have a serious man-love for old, historic, Toronto buildings.
I’m fascinated by our city’s history, and while we simply can’t compete with the thousand-year-old structures in Europe, we do have our own little slice of history here in Toronto.
One of the most fun blog features I ever worked on was The Buildings of The St. Lawrence Market, back in 2009. I did a three-part series on all the historic buildings in the area; a must-read for many of you who missed it! You can read Part One HERE.
I’ve always admired the Bank of Commerce on Yonge Street, in between Queen & Shuter, but it’s a little…..ummmm……dirty, shall we say?
Over the years, this building has been used and abused by some of the most carefree and unpoliced members of our society: pigeons.
For some reason, pigeons love to empty their bowels (if birds have bowels…..any bird enthusiasts among my readers who can shed some light??) on this building and the neighbouring building immediately north. Over time, these two buildings have simply become known as “the bird poop buildings.”
And seeing the photos I took below, can you argue?
Wow. I don’t know what to say…
I’ve walked by these buildings many, many times over the years, and I’ve always thought, “I really wish somebody would do something with those buildings!” It’s such a shame that a great piece of Toronto’s history is just sitting there getting crapped on by these guys:
Damn pigeons!
Well, time hasn’t been kind to the Bank of Commerce at 197-199 Yonge Street, but the future is bright!
I suppose it’s a bit of a double-edged sword, however. I had always hoped that this beautiful building would be restored and turned into a library, museum, or event hall, but in actual fact, it’s going to be turned into yet another condo. I suppose it’s the lesser of two evils; that is, it would be worse to see the building torn down or have it fall into even worse disrepair, although I’m not sure that’s possible…
Built in 1905, the Bank of Commerce has actually been abandoned since 1987! It’s had many different uses over the years, and you can actually still see the words “DENTIST” on the second floor of the building where somebody probably practiced in the 60’s or 70’s:
Little-known developer, MOD Developments will be turning the historical building into a 60-storey condominium called “Massey Towers,” which already has a large advertisement up at the current site. MOD Development’s only other project to date is FIVE Condos at St. Joseph’s & Yonge Street, but Massey Towers will be designed by renowned firm Hariri Pontarini Architects, whose projects are too many to name, but include One City Hall, Minto775, ART, Shangri-La, and my current residence, Vu Condos.
Like I said – it’s cliche that this site will become “yet, another condo,” but it’s better than letting it sit there and rot.
The article in this past week’s Globe & Mail, quoted the owner of MOD Developments, Gary Switzer, as saying, “What does it say about our city to have a building like this empty right on the main street?”
I couldn’t possibly agree more.
Yonge Street is famous! It’s the best-known street in Toronto, and one of the most well-known streets in our entire country!
How could we let this happen?
Yet we have a poo-covered building sitting there, rotting away.
It reminds me of this:
Those of you that read my blog during its infancy in 2007 will recall the photos and blog posts from my trip to Serbia.
These buildings are on the Belgrade’s equivalent of Yonge Street, and the city doesn’t have the money to fix them, so they don’t. These buildings have been sitting here in this condition for almost twenty years, and they’ll likely remain as such indefinitely.
Toronto is not Serbia, but yet the Bank of Commerce and its sister building at 205 Yonge Street, the Bank of Toronto, draw some eerie similarities to the photo above:
Two buildings, both beautiful and historic, and both ruined by time. And poo…
The crazy thing is – the Bank of Toronto is an even more impressive structure! I wonder what will become of that building? Perhaps, phase two of the condominium development at Massey Towers?
Dare to dream…
Pigeon Patrol
Pigeon Patrol Products & Services is the leading manufacturer and distributor of bird deterrent (control) products in Canada. Pigeon Patrol products have solved pest bird problems in industrial, commercial, and residential settings since 2000, by using safe and humane bird deterrents with only bird and animal -friendly solutions. At Pigeon Patrol, we manufacture and offer a variety of bird deterrents, ranging from Ultra-flex Bird Spikes with UV protection, Bird Netting, 4-S Bird Gel and the best Ultrasonic and audible sound devices on the market today.
Best Types of Pigeon Repellent
Bird Spikes– Pigeons can’t land on surfaces with bird spikes—perfect for ledges, sills, signs, and fences.
Shop Bird Spikes: https://www.pigeonpatrol.ca/bird-spikes/
BOCA RATON — In a community proud of its well-off residents, fancy shops and upscale resorts, pigeon droppings outside City Hall are taken seriously.
City workers have used pressure sprayers to wash the droppings away and tried electricity and a recording of a hawk screeching to scare off the pigeons, but the birds — and their mess — remain.
“The pigeons hang out on the light fixtures and the droppings get on the sidewalk right in front of the front door,” Assistant City Manager George Brown said.
In their first attempt to get rid of the birds, workers rigged 12-volt wires around the City Hall’s windows, where the pigeons like to roost. That’s not enough electricity to kill the birds, but workers hoped it would make them uncomfortable enough to move, which they did — a few feet away to some light fixtures.
This month, workers installed a speaker on the roof, hoping that recordings of screeching hawks would drive them away. The pigeons, in their own way, just laughed.
“They just decided they like it here for some reason,” Brown said.
Tim Brown, the education director at a nearby wildlife hospital, said the common pigeon — which is actually the African rock dove — lives on stone outcroppings in the wild, making them perfect city dwellers.
“Architecturally, we build all these wonderful habitats for pigeons,” he said. To get rid of the birds, he suggests chicken wire, which would be unsightly, or installing strips studded with needles.
But city officials have other ideas.
“Poison corn,” said Bob DiChristopher, deputy director of municipal services. After a moment’s pause, he added: “That’s just a joke.”
Pigeon Patrol
Pigeon Patrol Products & Services is the leading manufacturer and distributor of bird deterrent (control) products in Canada. Pigeon Patrol products have solved pest bird problems in industrial, commercial, and residential settings since 2000, by using safe and humane bird deterrents with only bird and animal -friendly solutions. At Pigeon Patrol, we manufacture and offer a variety of bird deterrents, ranging from Ultra-flex Bird Spikes with UV protection, Bird Netting, 4-S Bird Gel and the best Ultrasonic and audible sound devices on the market today.
Best Types of Pigeon Repellent
Bird Spikes– Pigeons can’t land on surfaces with bird spikes—perfect for ledges, sills, signs, and fences.
Shop Bird Spikes: https://www.pigeonpatrol.ca/bird-spikes/
Solar panels are an excellent investment—but they also attract unwanted tenants: pigeons. Birds love to nest underneath panels because they provide warmth, shade, and protection from predators.
If left unchecked, bird activity can lead to clogged gutters, wiring damage, reduced energy efficiency, and thousands in repairs. The good news? With proper solar panel bird proofing, you can protect your solar system and prevent infestations—all without harming the birds.
Why Do Birds Nest Under Solar Panels?
Warm, Sheltered Space Solar panels create the perfect microclimate—warm, dry, and shaded.
Safety from Predators Being under panels keeps pigeons out of reach of cats, hawks, and raccoons.
Easy Access to Nesting Materials Nearby trees, garbage, or roof gardens provide ample nesting material.
Dangers of Bird Nesting Under Solar Panels
Wiring Damage – Birds chew and pull on cables
Fire Risk – Nesting materials are flammable
Reduced Efficiency – Debris and droppings cause panel shading
Roof Damage – Moisture and droppings cause corrosion and leakage
Health Hazards – Pigeon droppings carry histoplasmosis and salmonella
Solar Panel Bird Proofing Products
1. Bird Netting and Solar Mesh Guards
The most effective solution is to install UV-stabilized mesh or netting around the perimeter of the solar array. Shop Bird Netting Here: https://www.pigeonpatrol.ca/bird-netting/
Benefits:
Keeps birds from entering underneath panels
Blends with roof aesthetics
Weatherproof and long-lasting
Can be DIY-installed or professionally fitted
2. Bird Spikes for Edges and Frames
Install spikes along the outer edge of solar panels to prevent birds from landing or walking around the system. Explore Bird Spikes: https://www.pigeonpatrol.ca/bird-spikes/
Best for:
Lower panel edges
Surrounding rooftop ledges
Gutter edges below panels
3. Ultrasonic Bird Repellers
Ultrasonic bird repellers emit high-frequency sound that’s unpleasant for birds but inaudible to humans. Browse Ultrasonic Repellers: https://www.pigeonpatrol.ca/bird-repeller/
Use alongside netting for added protection.
How to Install Bird Proofing for Solar Panels
Step 1: Clean the Area Remove all bird nests, droppings, and debris. Disinfect the area thoroughly.
Step 2: Install Mesh or Netting Use solar mesh clips or roof-friendly fasteners to secure netting around the perimeter of the solar panel system.
Step 3: Add Bird Spikes or Repellers Install spikes on exposed edges or install a repeller unit to deter future roosting attempts.
Step 4: Regular Maintenance Inspect the proofing system every 6–12 months for wear and tear, especially after heavy storms.
Who Needs Solar Panel Bird Proofing?
Homeowners with Rooftop Solar Especially in urban or suburban areas with high pigeon populations.
Commercial Properties with Solar Arrays Warehouses, retail plazas, schools, or hospitals with rooftop solar systems.
Solar Panel Installers & Property Managers Protect client investments and reduce callbacks for bird-related service issues.
Yes. Birds can damage wiring, reduce efficiency, and cause expensive roof damage.
What is the best way to bird-proof solar panels?
The most effective method is mesh or netting around the perimeter, combined with bird spikes and ultrasonic deterrents.
How long does solar panel bird proofing last?
Pigeon Patrol’s mesh and netting systems are rated for 5–10 years or longer.
Will this hurt the birds?
No. All products are humane, non-toxic, and environmentally safe.
Bird-proofing your solar panels is a small investment that protects your energy system, roof, and health. Whether you’re a homeowner or a building manager, the best time to act is before pigeons move in.
If you live in a condo or apartment, you know how frustrating it is when pigeons take over your balcony. They leave droppings, feathers, and nesting materials, turning your relaxing outdoor space into a dirty, unsanitary mess.
Fortunately, pigeon control for balconies is not only possible—it’s easy, affordable, and completely humane. In this article, we’ll walk you through the best ways to deter pigeons from your balcony, using proven products from Pigeon Patrol.
Why Pigeons Love Balconies
Balconies are perfect roosting spots for pigeons because they offer:
Shelter from wind and rain
Proximity to food sources
Ideal nesting areas behind furniture, BBQs, and planters
Quiet, undisturbed locations
Problems Pigeons Cause on Balconies
Health Hazards Pigeon droppings carry fungi, bacteria, and parasites that can cause:
Histoplasmosis
E. coli
Salmonella
Structural Damage Their acidic waste corrodes concrete, railings, and balcony furniture.
Mess and Odor Feathers, nesting materials, and droppings smell bad and look worse.
Best Pigeon Control Products for Balconies
1. Bird Spikes for Railings and Ledges
Bird spikes are an effective physical barrier to keep pigeons from landing or perching on your railing. Shop Bird Spikes: https://www.pigeonpatrol.ca/bird-spikes/
Magnetic bird repellers have proven successful in preventing birds from flying into specific areas. A strong magnetic force interferes with birds sense of direction which confuses and disorientates pest birds, causing them to leave the area effected. These are excellent pigeon deterrents. Check Out Magnetic Bird Defender: https://www.pigeonpatrol.ca/product/magnetic-bird-defender/
How to Pigeon-Proof Your Balcony – Step-by-Step
Step 1: Clean the Area Remove all droppings, nesting materials, and debris. Sanitize thoroughly.
Step 2: Install Barriers Apply spikes to railings and ledges, or install netting across the open areas.
Step 3: Use a Repeller Place an ultrasonic device or sound deterrent to add another layer of defense.
Step 4: Remove Attractants Eliminate open food, water, or cozy nooks where pigeons may try to nest.
Bonus Tips for Pigeon-Free Balconies
Avoid feeding other birds—it attracts pigeons
Remove cushions or cover furniture when not in use
Use motion-activated deterrents if spikes and netting aren’t enough
Don’t use fake owls unless you move them regularly (pigeons will learn they’re fake)
Why Choose Pigeon Patrol for Balcony Pigeon Control?
Serving BC’s Lower Mainland for 15+ years
All products are safe, humane, and discreet
Trusted by property managers, homeowners, and condo associations
Fast shipping and professional advice
FAQs
Are bird spikes legal to use on balconies?
Yes. They’re completely legal, humane, and used on buildings worldwide.
Can I install pigeon netting myself?
Yes, but if you’re unsure, a professional installer will ensure full coverage with no gaps.
Will the deterrents harm birds?
No. All solutions are non-lethal and environmentally safe.
How quickly do pigeons leave after deterrents are installed?
Often within days—but it depends on how long they’ve nested. Older infestations may take longer.
If pigeons have made your balcony their home, it’s time to take it back. With a combination of spikes, netting, and ultrasonic repellers, you can enjoy your outdoor space again—clean, quiet, and bird-free.
The steps of City Hall, once a symbol of civic pride, are now stained with something far less noble—pigeon droppings. A growing population of urban pigeons has turned the historic building into a nesting ground and bathroom, much to the frustration of city workers and residents.
“It’s absolutely disgusting,” said Angela Simmons, a clerk at the records office. “Every morning, we have to dodge piles of droppings just to get to the front door. Some days I have to bring a change of shoes.”
A closeup shot of a Feral pigeon in a city
The Department of Public Health has issued a warning about potential respiratory illnesses associated with dried pigeon feces, including histoplasmosis and cryptococcosis, both of which can cause serious lung infections.
Maintenance crews are power-washing the building’s steps twice a week, but it hasn’t been enough. “We’re just chasing the problem,” said Facilities Manager Larry Cho. “Until we deal with the birds themselves, we’ll keep mopping up after them.”
City Council is expected to vote next Tuesday on a proposed ordinance that would fund humane deterrents such as bird netting, sloped ledges, and the installation of owl decoys.
Pigeon Patrol Products & Services is the leading manufacturer and distributor of bird deterrent (control) products in Canada. Pigeon Patrol products have solved pest bird problems in industrial, commercial, and residential settings since 2000, by using safe and humane bird deterrents with only bird and animal -friendly solutions. At Pigeon Patrol, we manufacture and offer a variety of bird deterrents, ranging from Ultra-flex Bird Spikes with UV protection, Bird Netting, 4-S Bird Gel and the best Ultrasonic and audible sound devices on the market today.
Best Types of Pigeon Repellent
Bird Spikes– Pigeons can’t land on surfaces with bird spikes—perfect for ledges, sills, signs, and fences.
Shop Bird Spikes: https://www.pigeonpatrol.ca/bird-spikes/
The Brighton Clock Tower, a proud piece of the city’s 19th-century heritage, is under siege. Not by vandals or weather—but by pigeons. The acidic nature of their droppings is slowly eroding the sandstone structure, prompting alarm from conservationists and city officials alike.
“The pigeons have turned this into their personal toilet,” said heritage consultant Roger Fairbanks, shaking his head. “And the worst part is the damage is cumulative. What’s already been lost can’t be restored.”
Pigeons!!!
According to the Brighton Historical Society, the tower has not undergone a full cleaning in over five years. Recent inspections revealed black crusted layers of guano on upper ledges and a corrosion ring forming around the base.
Local residents are upset by what they see as neglect. “It’s embarrassing,” said Anna Pritchard, who brings tourists to the area. “They ask me about the clock, and I’m afraid to tell them what’s actually on it.”
City engineers are now weighing the cost of installing anti-roosting spikes and motion-activated deterrents. Meanwhile, experts warn that if the situation isn’t addressed soon, the damage could become irreversible.
Pigeon Patrol
Pigeon Patrol Products & Services is the leading manufacturer and distributor of bird deterrent (control) products in Canada. Pigeon Patrol products have solved pest bird problems in industrial, commercial, and residential settings since 2000, by using safe and humane bird deterrents with only bird and animal -friendly solutions. At Pigeon Patrol, we manufacture and offer a variety of bird deterrents, ranging from Ultra-flex Bird Spikes with UV protection, Bird Netting, 4-S Bird Gel and the best Ultrasonic and audible sound devices on the market today.
Best Types of Pigeon Repellent
Bird Spikes– Pigeons can’t land on surfaces with bird spikes—perfect for ledges, sills, signs, and fences.
Shop Bird Spikes: https://www.pigeonpatrol.ca/bird-spikes/
Commuters at the Jackson CTA Station experienced unusual delays this morning—not because of technical malfunctions, but because of an unexpected menace: pigeon droppings.
Two riders slipped and fell on the southbound platform around 8 a.m., prompting a temporary halt in service while janitorial crews responded. No major injuries were reported, but the incident has raised questions about safety and sanitation in public transit spaces.
“The smell hits you first,” said Mark Ellis, a daily commuter. “Then you see the mess—droppings everywhere. Benches, railings, even the signs. It’s gotten out of hand.”
An elderly man enjoys a cold winter morning in the city.
Transit authorities said the problem has been building for months. Pigeons roost in the station’s rafters, undeterred by current pest control measures. According to CTA spokesperson Nia Harrell, “We’re working on a long-term plan that includes physical deterrents, more frequent cleanings, and consultation with pest control specialists.”
Harrell added that the CTA is exploring ethical deterrent methods like reflective strips, ultrasonic devices, and even using trained birds of prey in partnership with local falconers.
Pigeon Patrol Products & Services is the leading manufacturer and distributor of bird deterrent (control) products in Canada. Pigeon Patrol products have solved pest bird problems in industrial, commercial, and residential settings since 2000, by using safe and humane bird deterrents with only bird and animal -friendly solutions. At Pigeon Patrol, we manufacture and offer a variety of bird deterrents, ranging from Ultra-flex Bird Spikes with UV protection, Bird Netting, 4-S Bird Gel and the best Ultrasonic and audible sound devices on the market today.
Best Types of Pigeon Repellent
Bird Spikes– Pigeons can’t land on surfaces with bird spikes—perfect for ledges, sills, signs, and fences.
Shop Bird Spikes: https://www.pigeonpatrol.ca/bird-spikes/
Roosevelt Middle School is facing a crisis that has nothing to do with test scores or staffing—it’s pigeons. Dozens of the birds have taken up residence on the school roof, leaving droppings throughout outdoor hallways, handrails, and the student quad.
“I’m scared my daughter will catch something,” said Delia Morales, mother of a 6th grader. “They eat lunch out there! There’s poop on the tables every day.”
The school’s janitorial staff reports spending hours daily trying to hose down surfaces before students arrive. Despite this, children have reportedly stepped in droppings, and some even reported seeing pigeons nesting inside a broken roof vent near the gymnasium.
Principal Tom Ferris acknowledged the growing concerns at a PTA meeting last Thursday. “We’re requesting emergency funds to install bird netting and roof barriers,” he said. “We’re also consulting with environmental safety inspectors to make sure there’s no health risk.”
lots of pigeons gathering for food
Parents are organizing a volunteer cleanup day while pushing the district to take faster action. “This isn’t just a nuisance anymore—it’s a hazard,” said PTA President Carla Hsu.
Pigeon Patrol Products & Services is the leading manufacturer and distributor of bird deterrent (control) products in Canada. Pigeon Patrol products have solved pest bird problems in industrial, commercial, and residential settings since 2000, by using safe and humane bird deterrents with only bird and animal -friendly solutions. At Pigeon Patrol, we manufacture and offer a variety of bird deterrents, ranging from Ultra-flex Bird Spikes with UV protection, Bird Netting, 4-S Bird Gel and the best Ultrasonic and audible sound devices on the market today.
Best Types of Pigeon Repellent
Bird Spikes– Pigeons can’t land on surfaces with bird spikes—perfect for ledges, sills, signs, and fences.
Shop Bird Spikes: https://www.pigeonpatrol.ca/bird-spikes/
Portland’s outdoor dining renaissance is facing a surprising adversary: pigeons. In the trendy Pearl District, restaurant owners are reporting a surge in droppings on tables, chairs, and patios—forcing some to close outdoor sections during peak hours.
“It’s costing us money,” said Daniel Nguyen, owner of Nest Café. “We had to throw out six tablecloths in one day. And when guests get hit mid-meal, they don’t exactly come back.”
Birds roost on streetlights and awnings overhead, raining down waste during lunch and dinner hours. The problem has become so visible that several restaurant owners are banding together to form a “Pigeon Patrol” task force to lobby the city for help.
Pigeon Ohhh NO!!
A pilot project involving trained falcons is already underway in a nearby neighborhood, and Pearl District restaurateurs are hoping to be next. “It sounds dramatic, but it works,” said Susan Albrecht, who owns a bakery down the block. “The moment those falcons show up, the pigeons scatter.”
For now, staff are keeping hoses, disinfectants, and umbrellas close at hand. But many agree: a long-term fix is urgently needed before the poop problem affects tourism—and reputations.
Pigeon Patrol Products & Services is the leading manufacturer and distributor of bird deterrent (control) products in Canada. Pigeon Patrol products have solved pest bird problems in industrial, commercial, and residential settings since 2000, by using safe and humane bird deterrents with only bird and animal -friendly solutions. At Pigeon Patrol, we manufacture and offer a variety of bird deterrents, ranging from Ultra-flex Bird Spikes with UV protection, Bird Netting, 4-S Bird Gel and the best Ultrasonic and audible sound devices on the market today.
Best Types of Pigeon Repellent
Bird Spikes– Pigeons can’t land on surfaces with bird spikes—perfect for ledges, sills, signs, and fences.
Shop Bird Spikes: https://www.pigeonpatrol.ca/bird-spikes/
Pigeons are persistent birds—once they decide to roost, they can cause property damage, health hazards, and messy cleanup. The good news? You have lots of effective pigeon repellent options to choose from.
In this guide, we’ll cover the top pigeon repellents, when to use them, and how to combine products for the best results.
Best Types of Pigeon Repellent
Bird Spikes – Pigeons can’t land on surfaces with bird spikes—perfect for ledges, sills, signs, and fences. Shop Bird Spikes: https://www.pigeonpatrol.ca/bird-spikes/
Ultrasonic sound deterrents for wide-area repelling
Add visual deterrents (reflective tape, predator decoys) for extra impact
FAQs
What is the most effective pigeon repellent?
Bird spikes + netting + ultrasonic devices offer the most comprehensive protection.
Are pigeon repellents safe for other birds?
Yes—our products are designed to deter all pest birds humanely.
Choosing the right pigeon repellent depends on your property, level of infestation, and budget. Often, the best solution is a multi-layered approach using spikes, netting, and sound deterrents.
If you want to stop pigeons from nesting entirely, a pigeon net is one of the most reliable and long-lasting solutions. Bird netting physically blocks birds from accessing protected spaces—without harming them.
In this guide, you’ll learn when to use pigeon netting, how it works, and which areas of your property will benefit most from this type of bird control.
What Is Pigeon Netting?
Pigeon netting is UV-stabilized mesh designed to keep birds out of specific areas: balconies, rooftops, parking garages, and commercial spaces.
100% humane—prevents nesting without harming birds
Durable—withstands rain, snow, wind, UV rays
Discreet appearance—nearly invisible from a distance
Protects large or oddly shaped areas
Low-maintenance & long-lasting
Where to Install Pigeon Netting
Balconies & patios
Roof overhangs & HVAC units
Parking garages & warehouses
Solar panels
Under building signage
How to Install Pigeon Netting
Inspect the area & measure dimensions
Install anchor points (eye bolts or brackets)
Stretch net taut across opening
Seal edges with zip ties or clips
Check for gaps to ensure birds can’t sneak in
FAQs
Is pigeon netting permanent?
Yes—when installed correctly, netting can last 5–10+ years.
Can pigeons break through netting?
No—Pigeon Patrol’s netting is heavy-duty and pigeon-proof.
A pigeon net is one of the most effective bird control products for keeping spaces 100% bird-free. For large commercial properties or high-infestation zones, netting is a must.
Want to repel birds without using physical barriers? A bird sound deterrent may be your best option. These devices work by emitting sounds that birds hate—from ultrasonic frequencies to predator calls—pushing them to leave and find a quieter place to roost.
In this guide, you’ll learn how sound-based bird control works, which types of devices are most effective, and how to combine sound deterrents with other solutions for long-term success.
How Do Bird Sound Deterrents Work?
There are two main types of bird sound deterrents:
Ultrasonic Bird Deterrents – Emit high-frequency sound waves above human hearing (typically 20 kHz+) that irritate birds and disrupt communication. Shop Ultrasonic Bird Repellers: https://www.pigeonpatrol.ca/bird-repeller/
Acoustic Bird Deterrents – Play recordings of predator calls (hawks, falcons) or distress calls of birds, triggering a fear response.
Benefits of Bird Sound Deterrents
Non-invasive & invisible
100% humane
Safe for people and pets
Covers wide areas (good for rooftops, balconies, gardens)
Works on multiple bird species (pigeons, sparrows, seagulls, crows)
Change sound patterns regularly to prevent birds from getting used to the noise
Move devices occasionally for dynamic coverage
FAQs
Are sound bird deterrents safe for pets?
Yes—ultrasonic models are generally safe for dogs and cats.
Do sound deterrents work for pigeons?
Yes—pigeons hate ultrasonic frequencies and predator calls.
Bird sound deterrents are a smart, humane way to discourage pest birds. For best results, pair sound deterrents with physical products like spikes and netting from Pigeon Patrol.
Unwanted birds on your roof, signs, balconies, or vents can go from annoying to damaging very quickly. Bird control is essential for keeping your property clean, safe, and structurally sound—without causing harm to the birds.
In this article, we’ll walk you through the most effective bird control strategies, when to use them, and how to select the right products to protect your property from pigeons, seagulls, sparrows, and more.
Why Is Bird Control Necessary?
1. Prevent Property Damage Birds may be light, but their damage is heavy:
Acidic droppings corrode metal, paint, and concrete.
Nesting debris clogs gutters and damages HVAC units.
Woodpeckers can drill into siding and cause rot.
2. Reduce Health Risks Bird droppings carry over 60 transmittable diseases, including:
Histoplasmosis
Cryptococcosis
E. coli
3. Improve Cleanliness & Aesthetics Bird infestations create a messy, foul-smelling environment for visitors, tenants, or customers.
Top Bird Control Methods That Work
1. Bird Spikes – The Physical Barrier
Bird spikes create an unwelcoming surface that makes it impossible for birds to land or roost.
Protect your home, attic, balcony, or garden from unwanted birds. Recommended solutions:
Bird spikes on window sills
Netting under solar panels
Motion-activated sound deterrents
Commercial Bird Control
Keep storefronts, signage, awnings, and entryways free of birds to maintain a clean, professional image.
Install spikes on signs
Use netting in open rafters
Install repellers near parking lots
Industrial and Agricultural Bird Control
Large facilities require a combination of deterrents:
Warehouse netting
Grain silo protection
Rooftop barriers and sound repellers
Types of Birds That Require Control
Pigeons – Nest on rooftops, ledges, and balconies
Seagulls – Common near coastal areas and landfills
Sparrows & Starlings – Nest in vents and overhangs
Woodpeckers – Damage wood siding and trees
Crows & Magpies – Raid garbage and food courts
How to Choose the Right Bird Control Product
Problem Area
Recommended Solution
Rooftop or Ledge
Bird Spikes
Large Covered Space
Bird Netting
Outdoor Seating
Ultrasonic Repeller
Fence or Balcony Railing
Fence Spikes
Persistent Infestation
Pigeon Trap
💡 Tip: Combine two or more products for maximum effectiveness.
FAQs
What is the most effective bird deterrent?
Bird spikes and netting are the most reliable physical barriers, especially when combined with ultrasonic devices.
How long do bird control systems last?
High-quality systems like those from Pigeon Patrol are built to last 5–10+ years with proper installation.
Are bird control solutions safe for children and pets?
Yes! Our deterrents are non-toxic, humane, and pet-safe.
Can I install bird control products myself?
Yes, many products like spikes and ultrasonic devices are DIY-friendly, but netting and large systems are best professionally installed.
Bird control is more than just stopping birds—it’s about protecting your property, reputation, and peace of mind. From pigeon-proofing your rooftop to installing ultrasonic repellents in your garden, Pigeon Patrol offers everything you need to stop birds humanely and permanently.
Birds might be beautiful in the wild—but not when they’re roosting on your roof, business sign, or solar panels. Whether you’re a homeowner dealing with pigeons or a commercial property manager dealing with a larger infestation, professional bird control services are your best defense against property damage, health risks, and daily mess.
This guide will show you how bird control services can help and which deterrent solutions are best for long-term prevention.
Why Bird Control Services Are Important
1. Birds Cause Expensive Property Damage From clogged gutters to corroded paint and broken roof tiles, pigeon and seagull droppings are acidic and incredibly destructive.
2. Health Hazards from Droppings and Nests Birds carry parasites, bacteria, and fungi. A build-up of droppings can lead to:
Histoplasmosis
Salmonella
Cryptococcosis
3. Businesses Suffer Image and Revenue Losses No customer wants to walk under a bird-infested awning. Droppings, noise, and feathers drive away foot traffic and create bad impressions.
What Do Bird Control Services Include?
1. Site Inspection & Risk Assessment
Experts assess where birds are roosting or nesting, identify entry points, and evaluate what type of deterrent is needed.
2. Bird Spike Installation
Used to block perching spots on ledges, signs, fences, or rooftops.
Protect your home, attic, balcony, or garden from unwanted birds. Recommended solutions:
Bird spikes on window sills
Netting under solar panels
Motion-activated sound deterrents
Commercial Bird Control
Keep storefronts, signage, awnings, and entryways free of birds to maintain a clean, professional image.
Install spikes on signs
Use netting in open rafters
Install repellers near parking lots
Industrial and Agricultural Bird Control
Large facilities require a combination of deterrents:
Warehouse netting
Grain silo protection
Rooftop barriers and sound repellers
Common Bird Species We Handle
Pigeons – The #1 urban pest bird
Seagulls – Aggressive near coastlines and food courts
Starlings & Sparrows – Nest in vents and eaves
Woodpeckers – Cause damage to wooden siding
We even offer specific deterrents like the Woodpecker Deterrent Kit
FAQs
Are your bird control products safe for pets and children?
Yes! All of our deterrents are non-toxic and pet-friendly.
Do I need professional installation?
We recommend professional installation for netting and ultrasonic devices, but many products are DIY-friendly.
Can I use bird control services in winter?
Absolutely. In fact, winter is a great time to prepare for spring nesting season.
If you’re tired of bird droppings, nesting mess, or constant cleaning—it’s time to call the experts. Bird control services provide lasting protection, safeguard your health, and preserve your property’s value. Whether you’re in residential, commercial, or industrial spaces, Pigeon Patrol has a solution tailored to your needs.
You’ve likely heard them cooing, seen the droppings, or watched them strut across your rooftop like they own the place. Pigeons love roofs, and once they settle in, they can cause serious property damage, health hazards, and noise pollution. The good news? There are effective and humane methods to get rid of pigeons on your roof—and keep them away.
Let’s walk you through the best pigeon control strategies, the tools you’ll need, and how to pigeon-proof your roof for good.
Why Pigeons Choose Roofs to Roost
Elevated & Safe Roofs give pigeons a great vantage point to spot food, avoid predators, and nest in peace.
Warm and Dry Roof vents, eaves, and solar panels offer sheltered nesting areas year-round.
Access to Nearby Food Urban rooftops are usually near dumpsters, restaurants, and gardens, making them pigeon hotspots.
The Problems Pigeons Cause on Roofs
Corrosive Droppings – Their acidic waste eats through shingles, solar panels, and metal fixtures.
Blocked Gutters – Nesting materials clog drainage, causing leaks and water damage.
Fire Hazards – Pigeons nest in vents and chimneys, increasing fire risks.
Health Risks – Droppings spread harmful bacteria, fungi, and parasites.
How to Get Rid of Pigeons on Roof – Step-by-Step
Step 1: Remove Food and Water Sources
Start by eliminating anything that attracts pigeons—open garbage bins, bird feeders, standing water.
Step 2: Install Bird Spikes on Ledges and Flat Areas
Bird spikes are a physical barrier that prevents pigeons from landing or nesting.
No. Bird spikes are designed to deter—not injure—pigeons. They’re 100% humane.
Do ultrasonic bird repellers work on roofs?
Yes. When mounted properly, ultrasonic devices can be highly effective for roof applications.
Can pigeons come back after deterrents are installed?
Not likely—if you install a combination of spikes, netting, and sound deterrents, pigeons will move elsewhere.
How often should I clean my roof to deter pigeons?
We recommend monthly inspections and cleaning, especially during nesting season (spring/summer).
What’s the best pigeon repellent for roof vents?
Use netting or spikes around roof vents to prevent nesting.
Getting rid of pigeons on your roof doesn’t have to be a nightmare. With the right tools—bird spikes, netting, ultrasonic devices, and fence spikes—you can protect your property humanely and effectively. Trust Pigeon Patrol, British Columbia’s leader in bird control solutions, to help you get the job done.
s of birds killed by the commercial agent Avitrol, used legally by exterminators all over the city. “You can get caught up in the ‘Carbofuran Killer,’ but Avitrol is what’s killing most of the birds in New York City,” argues anti-Avitrol activist Mary Kelly, whose outrage at the sight of dead pigeons plopping to the pavement from lofty aeries on York and 86th Street in 1997 prompted Stone’s larger inquiry. After autopsying Kelly’s birds, Stone recommended a statewide ban on Avitrol (his employers at the state Department of Environmental Conservation issue licenses to exterminators). He has also found the toxic substance in at least one peregrine falcon – evidence, he says, that the agent is passed to other birds up the food chain, since peregrines love pigeon pie.
