Bird work has a legal dimension almost no other wildlife job has, and getting it wrong is expensive. Some birds you can exclude any day of the year. Others are federally protected the moment a nest becomes active, and touching one exposes you to real penalties. Anaheim has both, often on the same building, and the first thing we do on any bird job is establish which species you actually have.
The distinction that decides the whole job
Pigeons, European starlings and house sparrows are non-native and are not protected under the Migratory Bird Treaty Act. Work on those can proceed at any time of year, and that covers the large majority of commercial bird problems in Anaheim.
Cliff swallows and barn swallows are a different matter entirely. They are native migratory birds protected under the Migratory Bird Treaty Act, and once a nest is active it cannot legally be disturbed. Swallows return to Southern California in spring and the nesting season runs roughly March through early September. Exclusion has to be installed before they arrive or after the young have fledged and the nest is inactive. That timing is the entire job, and a company that shows up in May and knocks down mud nests on your building is creating a federal problem for you, not solving one.
We will identify the species before we quote anything. If you are inside swallow season with active nests, we will tell you that the work has to wait and we will book it for the right window rather than take your money now.
Anaheim specifically
The Resort District, the Convention Center, the Platinum Triangle and the stadium and arena areas generate most of the commercial bird work in this city, and it is overwhelmingly pigeons. Large flat roofs, parapet ledges, structured parking, loading docks, covered walkways and continuous food availability from restaurants and events produce populations that stay year round and grow.
The industrial belt in north Anaheim adds a second concentration: warehouse rooflines, open rafters, loading bays and signage that offer sheltered ledges. Swallows are more of an issue on structures near water and open ground, which in Anaheim means the Santa Ana River corridor, the Coves and Burris Basin area, and buildings on the eastern edge near the canyons. Residential swallow work is usually eaves and entryway corners on homes with stucco and deep overhangs.
Why droppings are the real cost
- Uric acid in bird droppings is corrosive. It degrades roof membrane, flashing, paint and stone, and on a large flat roof accumulated guano can shorten membrane life materially and void roofing warranties.
- Weight and drainage. Nesting material blocks scuppers, gutters and roof drains, and standing water on a flat roof is its own expensive problem.
- Health and liability. Accumulated droppings in enclosed or poorly ventilated spaces are a genuine exposure concern, and dry sweeping makes it airborne. For a commercial property that is a staff and customer liability issue as much as a maintenance one.
- Slip hazard on walkways, entries and parking structures, which is the one that most often turns into an actual claim.
- Ectoparasites. Bird mites and other nest parasites persist after birds leave and will move indoors, which is why removing nesting material properly matters.
How we handle it
The inspection is free and it is a roof and structure survey. We identify the species, map where they are roosting versus nesting versus loafing, and work out what is holding them there. Those are three different behaviours needing three different treatments, and a company that treats every ledge identically is wasting your money on most of them.
The work is physical exclusion. Netting to close off open areas like loading bays, courtyards, parking structures and covered walkways. Ledge products and slope systems on parapets, sills and signage to make landing surfaces unusable. Closing the actual entry points into roof voids, soffits and open rafters, which on warehouse and older commercial buildings is often where the real problem is. Then removal and cleaning of accumulated droppings and nesting material, bagged and hauled rather than swept.
Where the structure allows it, exclusion is permanent and does not need renewing. That is the difference between this and a service contract that bills you monthly forever.
What we do not do
We do not apply pesticides, avicides, bait or chemical repellents on any job. Not for birds, not for anything else.
That rules out poisoned bait and chemical fogging agents, both of which are still sold in this industry. They are indiscriminate, they create dead-bird recovery problems on your roof and in your voids, and they do nothing about the ledge that attracted the birds in the first place. Exclusion is slower to install and it actually ends the problem.
We also do not perform roofing, structural repair or electrical work. Where droppings have already damaged membrane or flashing, we will document it clearly so your roofer can quote from something specific, but that repair requires a contractor license we do not hold.
Book the September window and get it done once
Most bird companies will take your money in May, knock the nests down, and leave you with the same birds back next spring plus a federal problem you did not know you had. We work the other way. We survey now, tell you exactly what you have, and hold your slot for the window when the work is lawful and permanent.
Cliff and barn swallows are protected under the federal Migratory Bird Treaty Act, and once a nest is active it cannot legally be touched. The liability sits with you as the property owner, not with whoever you hired. Swallows return from late February and the season runs into early September, which leaves a working window of roughly September 1 through February 15.
That window is the opportunity, not the obstacle. Exclusion installed then is permanent — the birds arrive in spring, find they cannot land or build, and go elsewhere, this year and every year after. One properly executed job instead of an annual cleanup bill. Pigeons, starlings and house sparrows are not protected and we handle those any time of year, so if that is what you have on your building, there is no waiting at all.
Bird exclusion in Anaheim, step by step
Heavy-gauge screen over the roof vent
Vent screened against re-entry
Sealing the roofline entry
Working the roof edge
Photos are from our own crews on real jobs across Orange County and Los Angeles — never stock. We run these same steps on every Anaheim call.
What you actually get with us
Free inspection and species identification in writing. Before you commit to anything you will know whether you have swallows, pigeons or starlings, what that means for timing, and what it will cost. A company that cannot tell you which species you have should not be on your roof.
Permanent exclusion rather than a service contract. Netting, ledge systems and sealed entry points into eaves, soffits and roof voids are installed once and hold. We are not trying to sell you a recurring monthly visit, because on a properly excluded building there is nothing left to service.
Individually licensed technicians and full insurance. Tri County Trappers holds CDFW Trapping License TP-10188 and every technician on our crew carries their own rather than working as unlicensed help under a company licence. General liability, professional liability, workers compensation and commercial auto, certificates on request — which your management company will ask for on any commercial site in Anaheim.
No poison of any kind, and the mess actually removed. No avicides, no rodenticides, no chemical bait, so nothing dies inside your roof void and nothing enters the food chain. Droppings and nest material are bagged and hauled rather than swept, because uric acid degrades roof membrane and dry sweeping puts material into the air.
You talk to the owner. and our licensed specialists. On commercial and HOA work that means one accountable point of contact from survey through to sign-off.
The honest part, which is also the point
If you call us in May with active nests, we will tell you the work has to wait and book you for September rather than take a deposit now. We would rather lose four months of revenue than hand a customer a federal liability. It is the same reason we will tell you when a job is smaller than you feared, and when something falls outside our licence and belongs with a roofer.
That is why our customers call us back and why they refer us, and it is what we would want from a contractor on our own building.
Planning ahead is worth it. September slots fill quickly, because every property that had swallows this year needs the same window. Getting on the schedule during summer means the work happens the week it becomes lawful rather than in January.
Bird work across Anaheim
The Resort District and the areas around the Convention Center, Angel Stadium and Honda Center carry the heaviest commercial pigeon pressure in the city. Continuous food availability, large flat roofs, structured parking and covered pedestrian areas make an unusually good habitat, and these are properties where droppings become a customer-facing problem quickly rather than just a maintenance one.
North Anaheim’s industrial and warehouse corridor is the second concentration, where the issue is usually open rafters, loading bays and roof void access rather than exposed ledges. The Platinum Triangle’s newer high-density buildings tend to have cleaner detailing but concentrate birds on signage, balcony ledges and parking structures. Swallow work clusters along the river corridor and toward the canyon edge in the east, and on residential properties it is almost always deep stucco eaves and entry corners.
Questions we actually get asked
We have mud nests under our eaves and it is June. Can you take them down?
If those are swallow nests and they are active, no, and neither can anyone else legally. Cliff and barn swallows are protected under the Migratory Bird Treaty Act, and disturbing an active nest carries federal penalties that land on the property owner. What we can do is confirm the species, document the situation, and schedule exclusion for immediately after the young fledge and the nest goes inactive, typically from around September. Installed then, it prevents them re-establishing next spring, which is the outcome you actually want. Anyone offering to knock them down in June is handing you a liability.
We manage a commercial property and have tried spikes twice. Why do the birds keep coming back?
Usually because the treatment addressed one behaviour and not the others, or because spacing and coverage were wrong. Birds roost, nest and loaf in different places on the same building, and ledge products only address exposed landing surfaces. If they are getting into a roof void, a soffit or open rafters, spikes on the parapet change nothing. Partial coverage also just relocates them ten feet along. We survey the whole structure and treat by behaviour, which sometimes means netting an area rather than spiking a ledge.
Is this something you do for HOAs and commercial buildings, or just houses?
Both, and commercial and HOA work is a significant part of what we do. Larger properties generally need a survey and a phased plan rather than a single visit, particularly where public access, event schedules or business hours constrain the work. We are happy to provide documentation suitable for a board or a management company, including what was found, what is proposed and what falls outside our licensing so your roofer or contractor can quote their portion separately.
The rest of what we do in Anaheim
Birds are frequently not the only thing using a roofline or a void, and a structure open enough for one is usually open enough for others. These are the Anaheim services most often paired with bird work.
Licensed for the work we advertise, and clear about the rest
Wildlife control, structural pest control and construction are three separate licenses in California. Plenty of companies blur that line. We would rather tell you exactly where ours sits.
- Wildlife trapping and exclusion — this is us. Tri County Trappers operates under California Department of Fish and Wildlife Trapping License TP-10188, and every technician on our crew carries their own CDFW trapping license. Not a company license with unlicensed helpers under it. Each one, individually licensed by the State.
- Attic cleanout and decontamination — this is us. Removal, bagging, vacuuming and cleaning of contaminated material. We do not apply pesticides, rodenticides or bait on any job.
- Insulation, wood repair and structural work — not us. Tri County Trappers does not hold a Contractors State License Board license. That work is performed by a licensed contractor. We inspect it, document it and hand over the photographs so nobody starts cold.
- Structural pest control (Branch 2) — not us. If your situation needs it, we say so and point you to a licensed structural pest control operator rather than stretching our own license over it.
General liability, professional liability, workers’ compensation and commercial auto, all current, with limits well above what the State requires of a licensed trapper. Certificates on request, before you let anyone on your roof.
Talk to the owner
Tri County Trappers is owner-operated. You work directly with the owner and our licensed specialists — bird control in Anaheim is never handed off to an unlicensed subcontractor. Every technician on our crew carries their own CDFW trapping license, the owner reviews every inspection and every completed job, and runs jobs himself. Someone answers every call, seven days a week — call anytime. Free inspection, no obligation, and a clear number before anything starts.
Call (949) 304-5445 Email [email protected]
California Department of Fish and Wildlife Trapping License TP-10188, valid through 6/30/2027, and every technician on our crew carries their own. General liability, professional liability, workers’ compensation and commercial auto coverage — certificates on request. Member, National Wildlife Control Operators Association. 4.9 average rating on Google. We check every trap we set at least once every 24 hours. Where 14 CCR § 465.5(g)(2) applies it requires traps to be visited at least once daily — we hold to a rolling 24-hour interval, which is stricter than the rule. Payment plans available on larger jobs.
Book a free inspection
Pick an arrival window and it goes straight onto our schedule. You get a written report of what we found either way — and if you don’t have a problem worth paying to fix, we’ll tell you that.
No payment is taken to book an inspection. California Department of Fish and Wildlife Trapping License TP-10188.