Birds in the chimney, particularly chimney swifts, can catch anyone off guard with sudden sounds of rustling and chirping coming from the fireplace. But don’t panic—there are ways to handle these feathered squatters. From identifying the winged visitors to safely removing them and preventing their return, this guide will help you navigate the tricky world of chimney birds.
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How Birds Get Into a Chimney
Birds, especially chimney swifts, are remarkably adept at finding their way into chimneys. They have a keen sense for spotting potential nesting sites, and several factors make it easier for these creatures to invade your chimney.
Open flues are the most straightforward point of entry. An uncapped chimney is an open invitation for birds looking for a cozy nesting spot, providing them unobstructed access to shelter. Even damaged chimney caps can serve as a gateway for determined birds. Caps with small gaps or holes may seem minor to humans, but they can be more than enough for small birds to slip through.
Chimneys themselves can even become unintended entrances for birds over time, especially as the structure deteriorates. Crumbling bricks and mortar create openings that birds can find, often picking at them to gain access. Old nests left behind can attract birds looking to rebuild or establish new homes, too. These remnants, if not cleared out, serve as an open invitation for feathered friends.
The warmth from chimneys, particularly during colder months, offers a cozy refuge for birds seeking shelter. Chimney swifts, in particular, are naturally drawn to vertical, cave-like structures that mimic their preferred nesting sites in hollow trees. Their agility allows them to easily navigate small openings, making chimneys an irresistible target for these skilled flyers.
How To Determine What’s Living in Your Chimney
Before taking any action, you’ll need to identify the type of animal in the chimney. While chimney swifts are common, it’s possible that bats or other creatures could be the culprits, which would call for different strategies.
Watching flight patterns during twilight hours can give clues about your guests. Chimney swifts typically return to their nests at dusk, whereas bats usually emerge just after dark for their nocturnal hunts. Additionally, gauge the pattern between noise levels and observable activity. Swifts are notoriously chatty, especially when fledglings are present. If you hear a lot of chirping but only see a handful of creatures around dusk, you’re likely dealing with a family of swifts rather than a bat colony.
Pay careful attention to the nature of the sounds emanating from your chimney. The noises of chimney swifts often include distinct chattering or twittering noises, while bats make high-pitched squeaks. You can also examine any droppings that might be present. Swift droppings tend to be small and dry, but bat guano usually has a larger size and fragmented insect pieces.
Options for Removing Birds
Once you’ve confirmed that chimney swifts are your uninvited residents, you have two main choices for managing the situation. It’s important to remember that chimney swifts are protected under the Migratory Bird Treaty Act, which limits how you can handle them.
1. Wait It Out
The easiest and most humane approach is to simply wait for the birds to leave on their own. This method tends to align well with both conservation efforts and homeowners’ peace of mind for the following reasons.
Loss of Habitat
Chimney swifts often choose chimneys because their habitats are being destroyed. These birds have adapted to live in vertical areas and spend their lives constantly moving from home to home. A chimney gives them a practical alternative to their dwindling habitats in hollow trees.
Summer Visitors
Chimney swifts are migratory seasonal visitors, typically arriving in North America with the onset of spring and heading back to South America when the late autumn chill sets in. Their preference for warmer climates means they’ll vacate the chimney long before the winter, making your fireplace usable again.
Natural Pest Control
Chimney swifts are an invaluable pest control since they eat a lot of insects. As insectivores, they act as a defense against common pests such as flies, bees, wasps, and ants. They may protect your home from these pests while they live in your chimney.
2. Professional Removal
For some homeowners, the commotion from a family of chimney swifts can be disruptive. You can remove them, but you’ll need to approach this option responsibly and legally. Here’s how:
Avoid Personal Intervention
Under the Migratory Bird Treaty Act’s protection, disturbing, moving, or transporting chimney swifts, their nests, or their eggs is strictly prohibited. Taking measures such as lighting fires in an inhabited chimney is unlawful and poses a grave fire risk.
Don’t Use Standard Chimney Sweep Services
Most chimney sweep companies lack the licensing required to legally manage chimney swift removals. Bypass these services to stay complaint with wildlife protection laws.
Call Local Animal Control Services
Reach out to local animal control authorities, as they can guide birds to licensed wildlife control experts or rehabilitators. Only these professionals, licensed at both state and federal levels, have the legal clearance to handle removal.
How To Prevent Their Return
Once you’ve resolved your immediate bird issues, take measures to prevent their return:
Install a Chimney Cap
Installing a chimney cap offers a barrier against bird entry, debris, and certain pests. These wire cages preserve the chimney’s function by allowing smoke release while keeping wildlife at bay. For swifts already nesting there, schedule cap installations for the winter months, respecting their migration to the Southern Hemisphere.
Build a Chimney Swift Tower
If you want to support chimney swifts without sharing chimney space, consider building a chimney swift tower. These structures simulate the vertical nesting conditions birds need and can serve as important community and conservation projects. Grants and collaboration opportunities with local nature centers or conservation groups might assist in offsetting construction costs.
Final Thoughts About Birds in the Chimney
Dealing with birds in the chimney, particularly chimney swifts, requires a delicate balance between wildlife conservation and home maintenance. While these unexpected guests can sometimes be a nuisance, it’s important to remember the crucial role they play in our ecosystem. By taking preventative measures when possible, respecting wildlife protection laws, and seeking expert help when needed, homeowners can find a harmonious solution that works for both them and their feathered visitors.
Frequently Asked Questions
The best way to keep birds out is by installing a proper chimney cap. It’s a simple solution that works wonders for detering birds.
Most chimney sweeps aren’t licensed for bird removal. I recommend calling a pest control professional instead.
Prevention is key. Install a quality chimney cap at the top of the chimney and regularly inspect for any damage or gaps.
Don’t light a fire if there are birds in your chimney. It’s dangerous for the birds and illegal under the Migratory Bird Treaty Act.
First, don’t panic. The best plan of action is usually to wait it out. These birds, likely chimney swifts, will leave on their own when the season changes.
