How To Get Rid Of Chimney Swifts Without Harming Them (Or Breaking Federal Law)

First, Know What You're Hearing

That rhythmic, mechanical chattering echoing from your fireplace in June or July is a family of chimney swifts - small, cigar-shaped birds that nest almost exclusively inside masonry chimneys now that the hollow trees they evolved with are scarce. One breeding pair builds a single half-cup nest of twigs glued to the flue wall with saliva, and the racket you hear is the babies begging at feeding time.

It's worth ruling out the alternatives before planning anything: heavy scratching and thumping is more likely a raccoon, fluttering with cooing is pigeons or starlings near the top, and squeaking at dusk can be bats. Swifts have a signature sound - a loud, chittering roar that flares up every 15-20 minutes during daylight - and you'll see the adults rocketing in and out of the flue at dawn and dusk like tiny boomerangs.

Why You Legally Can't Remove Them Right Now

Chimney swifts are protected under the Migratory Bird Treaty Act, the same federal law that covers hawks and songbirds. Destroying or disturbing an active nest - including smoking birds out, running the fireplace, or sweeping the flue mid-season - is a federal offense that can carry fines in the thousands. No wildlife company, including us, can legally pull an active swift nest, and any operator who offers to should worry you.

The protection exists because swift populations have fallen sharply for decades as old brick chimneys get capped or demolished. Your chimney is, ecologically speaking, prime real estate - which is also why the same chimney gets re-colonized every spring if it's never sealed.

The Good News: This Solves Itself In Weeks

Here's what the frantic Google search rarely surfaces: the loud phase is short. Swift eggs hatch after about 19 days, and the babies are only noisy for the two to three weeks between hatching and flying. Once the young fledge, the family stops using the nest, and by late August through early October, every chimney swift in Kentucky and Indiana departs for its wintering grounds in the Amazon basin of Peru.

So the realistic timeline is: tolerate the chatter for a few weeks, keep the damper closed so nothing ends up in your living room, and don't light fires. A closed damper also muffles the sound considerably - most families find it goes from maddening to background noise with the damper shut and a little white noise.

The Legal Removal Timeline

Once the birds have migrated, everything opens up. Here's the sequence we run on Louisville-area swift chimneys every fall:

• Confirm the chimney is empty: no adults entering or exiting for several days, no begging calls - typically safe from mid-September onward.
• Remove the old nest and have the flue professionally cleaned - abandoned nests and droppings are a chimney-fire and histoplasmosis consideration, and the debris can block the flue.
• Inspect the chimney for damage: swifts need rough masonry to cling to, and crumbling flue tiles both attract them and cause them (and nests) to fall into the firebox.
• Install a quality stainless chimney cap with mesh siding - this is the entire permanent solution. A capped chimney has never once produced a repeat swift call for us.
• Do it before mid-April: swifts return to Kentuckiana in spring and go straight back to last year's chimney if it's still open.

What Not To Do (People Really Try These)

Every June we get calls after a DIY attempt has gone wrong. Don't light a fire or run the gas logs - beyond the federal violation, half-fledged swifts and nest material dropping onto flames is a house-fire scenario. Don't spray water or repellents down the flue. Don't hire a chimney sweep mid-season; reputable sweeps will refuse the job until fall anyway. And don't cap the chimney while birds are inside - trapping a protected species compounds the legal problem and leaves you with carcasses in the flue.

If a swift (or anything else) falls into your firebox, that's the one time to act immediately: a young swift can often be placed gently back up on the flue wall above the damper, where it will climb - or call us at (502) 791-9205 and we'll handle it same-day, along with a licensed rehabber referral if the bird is injured.

The Permanent Fix Costs Less Than Another Summer Of This

A professionally installed chimney cap ends the swift cycle permanently, keeps out the raccoons that love uncapped flues even more than swifts do, and blocks rain and debris as a bonus. We install heavy-gauge stainless caps sized to your flue as part of our exclusion work, backed by our written 10-year animal-free guarantee.

Call (502) 791-9205 and we'll put you on the fall calendar now - post-migration cleanout plus cap in a single visit, quoted flat-rate up front. By next April, the swifts will find a different chimney, and you'll find out what a quiet July sounds like.

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