What To Do If You Have Birds In Your Chimney

Quick Summary

Birds in chimney flues need careful handling, since many species that nest there carry federal protection and removing them the wrong way can create legal and safety problems. Lighting a fire with a nest present risks a chimney fire and traps birds inside, making it one of the worst first moves a homeowner can make. Calling a professional for species identification and proper removal timing keeps both the birds and the home safe.
Hearing chirping or fluttering sounds coming from your fireplace flue is unsettling, and it usually means birds have found their way into the chimney. Birds in chimney spaces are more common than most homeowners expect, since an open flue looks a lot like the hollow trees certain species naturally nest in.
Knowing what to do next, and just as importantly what not to do, makes a real difference in how this situation gets resolved.

Why Birds Get Into Chimneys

An open, uncapped chimney offers birds a dark, vertical space that closely resembles the hollow trees some species have relied on for nesting long before chimneys existed. Chimney swifts in particular are known for choosing chimneys almost exclusively in areas where old hollow trees have become scarce. The warmth rising from a home, combined with protection from predators and weather, makes an open flue an appealing spot for a bird looking to raise a brood.
This pattern has become so common that chimney swifts are sometimes called “chimney birds” in areas where their natural nesting habitat has largely disappeared. Older homes with masonry chimneys and no cap installed tend to see this activity more often, simply because the opening stays accessible year after year without anything blocking the way in.

Signs You Have Birds in Your Chimney

Chirping, scratching, or fluttering sounds coming from the flue are usually the first clue, especially noticeable in the early morning or right before dusk. Nesting material or droppings visible in the fireplace itself point to activity that has already been going on for a while. A musty or foul smell building up near the fireplace can also signal a nest, along with any noticeable blockage affecting how smoke draws up the chimney during use.
Some homeowners only notice a problem after a bird accidentally makes its way into the living space through an open damper, which tends to happen when young birds attempt their first flights and misjudge the space. This kind of sudden appearance inside the home is usually a strong sign that an active nest has been present for some time already.

The First Thing You Should Not Do

Lighting a fire with a nest inside the chimney is one of the most dangerous mistakes a homeowner can make. Dry nesting material packed into the flue can ignite quickly, creating a serious chimney fire risk, and the smoke and heat can trap or kill birds still inside before anyone realizes what’s happening.
If you suspect birds are present, skip using the fireplace entirely until the situation gets properly assessed.

Are the Birds in Your Chimney Protected by Law?

Chimney swifts, along with many other native bird species, fall under protection through the Migratory Bird Treaty Act, which restricts disturbing active nests, eggs, or chicks. This means bird removal often has to wait until a nesting cycle naturally finishes, rather than happening immediately on request. Attempting to remove a nest with eggs or young birds inside without proper knowledge can lead to real legal consequences, on top of the harm it causes the birds themselves.
Non-native species that occasionally end up in chimneys, like starlings, generally fall outside these protections, which changes what removal options are available. Figuring out which situation applies to your chimney is exactly why species identification comes first in any proper removal process.

What Professional Removal Looks Like

A licensed wildlife control service starts by identifying the species involved, since that detail determines what removal options are legally available and how urgent the situation is. If the nest is active with eggs or chicks, the safest approach is usually to wait until the young birds fledge naturally before any work begins. Once the chimney is confirmed empty, technicians can safely clear out nesting material and debris left behind.
This waiting period can feel frustrating for a homeowner eager to use the fireplace again, but it usually only lasts a few weeks depending on the species and how far along the nest is. Technicians can often advise on temporary precautions during this time, so the household stays safe while the birds finish raising their young.

Capping Your Chimney the Right Way

Installing a proper chimney cap is the most reliable way to stop birds from returning, but timing plays a big role here too. Capping a chimney while birds are still inside traps them, creating a bigger problem than the one you started with.
Once a technician confirms the space is completely clear, a well-fitted cap with mesh screening keeps future birds, along with squirrels and other wildlife, from getting back inside.

Get Help from Best Pest & Wildlife Control

We help homeowners throughout the Western United States handle birds in chimney situations the right way, starting with proper species identification and following wildlife protection laws every step of the way.
Our licensed technicians know when removal can happen right away and when it needs to wait for a nesting cycle to finish, keeping both your home and the birds safe. Once the chimney is clear, we install a properly fitted cap to prevent the same problem from happening again next season. Reach out today and let’s get your chimney sorted out safely.

FAQs

Can I remove a bird nest from my chimney myself?

It depends on the species, since many birds that nest in chimneys are federally protected, and disturbing an active nest can carry legal consequences.

Is it safe to use my fireplace if birds are in the chimney?

No, lighting a fire with a nest present creates a serious fire risk and can trap or harm birds still inside the flue.

How long does it take to remove birds from a chimney?

It depends on the situation, since an active nest with eggs or chicks may need to wait until the young birds fledge before removal can happen.

How can I stop birds from nesting in my chimney again?

Installing a proper chimney cap with mesh screening after the space is confirmed empty is the most effective way to prevent repeat nesting.