Embroidery machine bird nesting: causes and fixes

Bird nesting is a wad of tangled thread that builds up under the hoop, usually in the bobbin area. The most common cause is how the upper thread was threaded, often with the presser foot down so it missed the tension discs, or with thread that slipped out of the take-up lever; a bobbin that is seated or wound wrong and fabric that is loose in the hoop are other common causes. Stop stitching, turn the machine off, cut and clear the nest without forcing the hoop, then rethread with the presser foot up, reseat the bobbin and rehoop the fabric taut with stabilizer.

Bird nesting is a wad of tangled thread that builds up under the hoop, usually in the bobbin area. Most of the time the cause is in how the machine was threaded: the upper thread missed the tension discs because the presser foot was down, or it slipped out of the take-up lever. Check the threading first, then the bobbin, then how the fabric is hooped.

Brother, OESD and Lindee G Embroidery are cited below because they publish clear troubleshooting advice. The Brother pages come from the operation manual for one Brother sewing and embroidery machine. This site is not affiliated with any of them, or with any machine maker. Steps differ by model, so follow your own manual.

What a bird’s nest looks like

OESD’s author often hears the problem before seeing it, because the machine makes an awful noise. Brother’s manual describes the same trouble: a rattling noise once stitching starts, then a stop, with thread tangled in the bobbin case. The fabric may then be stuck. Our glossary has a short entry on bird nesting.

Stop the machine the moment you see or hear it. Every extra stitch packs more thread in and makes the nest harder to clear. Lindee G Embroidery adds that a “thread break” message can be an early warning of a nest, so look under the hoop before you restart.

Quick cause finder

What you notice	Likely cause	First fix
Nest in the first few stitches after threading	Top thread missed the tension discs or slipped out of the take-up lever	Rethread with the presser foot up
Nest right after changing the bobbin	Bobbin wound badly or seated wrong	Rewind and reseat the bobbin
Nests on stretchy, thin or springy fabric	Fabric loose in the hoop, or flagging	Rehoop taut with stabilizer
Nest after thread broke or snagged	Bent needle, knotted thread, or a missed guide	New needle, full rethread
Nests keep coming back	Scratched or burred bobbin case, or thread bits and lint left in the race	Clean the race, then see a technician

Cause 1: the upper thread is not in the tension discs

This is the classic cause. OESD says thread nests are almost always a problem with how the machine was threaded. If the presser foot is down while you thread, the thread skips the tension discs. The top thread then has no tension and drops into the hook area, where it forms a “bird’s nest of thread.” Raising the foot before threading prevents it. Some newer machines raise the foot automatically, OESD adds, so check your manual.

Lindee G Embroidery names a second common version on home embroidery machines: the thread jumps out of the take-up lever, which cuts the tension so the thread is pulled down under the hoop. A take-up lever with no thread in it, it says, nests every time.

Brother’s manual also says to raise the needle and the presser foot lever before threading, and warns that wrong threading can tangle the thread and break the needle. Its tangled-thread page blames upper thread that was not threaded correctly, so it cannot be pulled up firmly and tangles in the bobbin case.

To fix it:

Cut the thread at the spool and take the old thread out of the machine completely.
Raise the needle to its highest position.
Raise the presser foot lever, and keep it up for the whole threading path.
Follow your machine’s threading diagram, one guide at a time, and make sure the thread sits in the take-up lever. The Brother machine in that manual has a window for checking this; on yours, look at the lever itself.
If you cannot confirm that the thread went through every guide, take it out and start again.

If your thread keeps breaking as well, see why embroidery thread keeps breaking.

Cause 2: the bobbin is wound or seated wrong

Lindee G Embroidery lists a bobbin that was inserted or threaded wrong among the common causes of nests. Brother’s bobbin page says to use a bobbin that has been wound correctly, otherwise the thread tension may be wrong and the needle may break. Take the bobbin out and check each of these:

Winding. The thread should lie evenly. Rewind it if it looks lumpy or loose.
Direction. Seat the bobbin so the thread unwinds the way your machine’s diagram shows. In the Brother manual used here, it unwinds to the left. Other machines differ.
Tension spring. Hold the bobbin down lightly while you guide the thread around the tab and through the slit, so it slips under the tension spring. Brother says that without this the thread may break or the tension may be wrong.
The bobbin itself. Use the bobbin type made for your machine. Brother’s symptom list names a scratched bobbin, or one that does not rotate properly, as a cause of bobbin thread breaks. It also says never to use a scratched or burred bobbin case, because it can tangle the upper thread. A new case comes from a service center.

If the bobbin thread appears on top of the stitches instead, read bobbin thread showing on top of embroidery.

Cause 3: loose hooping and flagging

Loose fabric is another common cause. The sewingmachinefun hooping tutorial lists bobbin thread nests among the problems of improper hooping, and counts hooping too tightly or too loosely as a common beginner mistake. Brother’s manual says the fabric must be flat, wrinkle-free and taut, with the inner and outer frames even, and its symptom list names fabric loose in the frame as a cause of a pattern that stitches out wrong.

Embroiderers call the hoop bouncing up and down during stitching flagging, and Lindee G Embroidery lists it as a common cause of nests. Its triggers are fabric hooped too loosely, fabric that slips or stretches in the hoop, and fabric pulled up with the needle on the upstroke, which can happen when you sew through adhesives that build up on the needle. For the first two, rehoop and add stabilizer.

To keep the fabric flat:

Hoop firmly, but do not stretch. The dealer Sewing Parts Online wants fabric taut but not stretched, with almost a drum effect when you tap it, and warns that pulling it very tight creates waves. Brother says to tighten the frame adjustment screw so the fabric does not loosen while stitching.
Use the lift check. The sewingmachinefun tutorial suggests lifting the fabric off the stabilizer. If it lifts, rehoop.
Always use stabilizer. Brother says to always use it, especially on stretch, lightweight and coarsely woven fabric, and to cut it larger than the frame. Sewingmachinefun’s stabilizer guide says that without it, fabric can pucker, stretch, get holes, or even get stuck in the needle plate. Our stabilizer guide shows what to pick, and our hooping guide walks through the steps.
Keep the fabric supported. Brother says to keep excess fabric away from the arm and not to let it hang off the table or snag.

Other causes to rule out

Needle. Brother says to replace a bent needle. OESD says needle size should match the fabric weight and design density, and that a needle that is too small can cause thread breaks. See our embroidery needle guide for sizes.
Thread. Brother’s symptom list for upper thread breaks includes knots or tangles in the thread, a needle that does not suit the thread, and wrong threading. Our thread guide covers weights.
The tension dial. Brother’s list for incorrect thread tension names upper threading, bobbin installation, bobbin winding, and the needle and thread choice, as well as the tension setting. Do the other checks first. Lindee G Embroidery says a tight bobbin tension with a very loose top tension can also cause a nest, so a changed setting deserves a second look.

How to remove a nest safely

Do not yank the hoop. Brother says to stop the machine immediately and turn it off, and to call a service center instead of forcing anything if you cannot finish the steps.

Stop and power off. Turn the machine off. If you will clean inside the machine, unplug it too, as Brother’s cleaning steps say.
Raise the needle out of the fabric. If the needle is down in the fabric, turn the handwheel to lift it out, then remove the needle. Brother’s manual says to turn it away from you (clockwise) in this case, the reverse of the usual direction toward you, so check your own manual first.
Free the fabric. Lift the fabric and cut the threads beneath it. Cut, do not pull. Clear any thread wrapped around the presser foot, and raise the presser foot lever before taking the foot off.
Open up the bobbin area. Remove the bobbin, then the bobbin case, as your manual shows. Cut any tangled threads you can see.
Go deeper only if needed. If the fabric is still stuck, your manual may show how to remove the needle plate. Clear the threads around it and the feed dogs. If the fabric still will not come free, stop and contact an authorized service center.
Clean the race. Brother says to clear lint and dust from the race and the area around it with a brush or vacuum, and not to oil the bobbin case on that machine. Follow your own manual.
Check the needle and bobbin case. Replace a bent or damaged needle. Look for scratches or burrs on the bobbin case.
Reassemble and check. If you took off the needle plate, turn the handwheel slowly toward you by hand, with no thread or presser foot on, and check that the needle drops in the middle of the opening. If the needle or feed dogs touch the plate, stop and call service.
Rethread and stitch a scrap. Rethread the top with the presser foot up, reseat the bobbin, and stitch a scrap with stabilizer before returning to your project.

How to stop it coming back

Thread with the presser foot up every time, including after a thread break.
Rewind any bobbin that looks uneven, and seat it carefully.
Hoop taut, with stabilizer that covers the whole frame.
Start each project with a fresh needle, and clean lint from the bobbin area regularly. Our maintenance guide covers routine cleaning.

If nests keep happening after all of this, the machine may need servicing by your maker’s authorized service center. Do not keep stitching on a machine that jams every few minutes.

Frequently asked questions

Why does my embroidery machine keep bird nesting?

The most common cause is a threading problem: top thread that skipped the tension discs because the presser foot was down, or that slipped out of the take-up lever. If threading is right, check the bobbin seating and winding, then whether the fabric is hooped flat and taut with stabilizer.

What is bird nesting in machine embroidery?

It is a wad of tangled thread under the fabric or hoop, usually in the bobbin area. Brother's manual describes the same trouble as thread tangled in the bobbin case, sometimes with a rattling noise before the machine stops.

Does the presser foot need to be up when I thread an embroidery machine?

Yes, raise it unless your manual says the machine does it for you. OESD says that threading with the foot down makes the thread skip the tension discs, so the top thread has no tension and falls into the hook area. Some newer machines raise the foot for you, so check your manual.

How do I get a thread nest out of my embroidery machine?

Turn the machine off, cut the tangled threads under the fabric, then remove the bobbin and bobbin case and clear every thread from the area. Clean out lint, replace the needle if it is bent, rethread and stitch a scrap. If the fabric still will not come free, Brother says to stop and call a service center instead of forcing it.

Should I change the tension dial to stop bird nesting?

Not first. Brother's troubleshooting list for incorrect thread tension names upper threading, bobbin installation, bobbin winding, and the needle and thread choice as causes, alongside the tension setting itself. Check those before you touch the dial.