Introduction
Here is something that surprises most backyard birders:
Leaving your hummingbird feeder up in September will not keep a single hummingbird from migrating. Not one.
Every year across North America, well-meaning bird lovers take down their hummingbird feeders in early September because they worry that a late-season feeder might "trick" a hummingbird into staying too long — missing its migration window and potentially freezing.
This is one of the most persistent myths in backyard birding. And it is completely wrong.
Hummingbird migration is not controlled by your feeder. It is controlled by daylight, hormones, and thousands of years of instinct. A hummingbird that is genetically programmed to fly 2,000 miles to Central America will do exactly that — whether your feeder is full or empty.
In fact, removing your feeder too early may do more harm than good. Here is why — and a month-by-month guide for when it actually makes sense to take it down.
Why Do Hummingbirds Migrate in Fall?
The decision to migrate is not something a hummingbird makes based on the weather, the availability of flowers, or whether you are still putting out sugar water.
Migration is triggered by a combination of internal and environmental signals:
- Decreasing daylight (photoperiod): As days shorten after the summer solstice, changes in light trigger hormonal shifts that prepare the bird for migration. This is the primary trigger — not temperature or food.
- Hormonal changes: These hormonal shifts drive a phenomenon called zugunruhe (migratory restlessness), where caged birds in experiments will orient themselves in the direction of migration and flutter intensely. Wild hummingbirds experience the same internal drive.
- Instinct: Ruby-throated Hummingbirds that have never made the journey before — juveniles only weeks out of the egg — will still fly 500+ miles non-stop across the Gulf of Mexico. They do not need a map or a guide. They have the route encoded in their genetics.
This means your feeder has essentially zero influence on whether a hummingbird decides to leave.
Photo: USFWS Midwest Region, CC BY 2.0
The Myth: "If I Leave My Feeder Up, Hummingbirds Will Stay and Freeze"
Let us address this directly, because it is the reason most people remove their feeders.
The logic goes: "If hummingbirds have an easy food source, they will not bother migrating. They will stay into winter and die when temperatures drop."
What actually happens:
- Hummingbirds migrate because their biology tells them to — not because local food runs out. Even with abundant feeders, healthy hummingbirds will depart on schedule.
- The hummingbirds that show up at your feeder in September are often transients — birds passing through from farther north, stopping briefly to refuel before continuing south. They are not local birds that have decided to stay. They are travelers using your feeder as a gas station.
- Late-season hummingbirds may include young birds from this year's broods, birds from breeding grounds in Canada and the northern US, or even rare western vagrants making their way east.
Removing your feeder does not push them out. It simply removes one of the few reliable refueling stops they have during one of the most physically demanding journeys in the animal kingdom.
How Far Do Hummingbirds Actually Fly?
To understand why late-season feeders matter, it helps to understand what these birds are about to do.
The Ruby-throated Hummingbird — the most widespread breeding hummingbird in eastern North America — undertakes one of the most remarkable flights of any bird on Earth:
- In fall, many Ruby-throated Hummingbirds fly non-stop across the Gulf of Mexico — approximately 500 miles of open water with nowhere to land (Audubon).
- This flight takes roughly 18-22 hours.
- To prepare, hummingbirds enter a state called hyperphagia — essentially force-feeding themselves to nearly double their body weight in fat, which becomes their only fuel for the crossing.
- A bird that weighs 3 grams before hyperphagia may reach 4-5 grams before takeoff. That extra gram is the difference between making it across and not.
Every feeder along the migration corridor — before, during, and after the Gulf crossing — is a potential refueling stop that can help a hummingbird complete this journey.
Map: Jebbles / Wikimedia Commons, CC0 — Ruby-throated Hummingbird breeding (orange) and winter (blue) range
When Should You Take Down Your Hummingbird Feeder? A Month-by-Month Guide
August: Keep Your Feeder Up and Full
August is one of the most active months for hummingbird migration in much of North America.
What is happening:
- Ruby-throated Hummingbirds begin leaving northern breeding grounds (Canada, northern US states) and moving south
- Local hummingbirds that raised spring/summer broods are joining the migration
- You may see both resident birds and new migrants passing through
What you should do:
- Keep feeders clean (change nectar every 3-5 days in warm weather)
- Keep feeders full — this is peak demand
- Consider adding a second feeder if traffic is heavy (hummingbirds are territorial and may chase each other away from a single feeding point)
September: Do NOT Take Your Feeder Down
September is often the busiest migration month for hummingbirds across much of the eastern and central United States.
What is happening:
- The main wave of Ruby-throated Hummingbird migration moves through
- Birds from Canada and the northern US are passing through
- Gulf Coast states begin seeing peak numbers
- Some western species (Rufous Hummingbirds) begin their own southward movement through inland mountain corridors
What you should do:
- Maintain feeders diligently — this is the most important month for migrating hummingbirds
- Clean feeders every 3-4 days (warm weather causes nectar to ferment faster)
- Keep multiple feeders if possible, spaced apart to reduce territorial conflicts
October: Watch Your Region
Migration timing varies significantly by latitude.
| Region | Hummingbird Activity in October |
|---|---|
| Northern US & Canada | Most hummingbirds have departed. Occasional stragglers possible. |
| Mid-Atlantic & Midwest | Numbers dropping, but late migrants still passing through. |
| Gulf Coast (TX, LA, MS, AL, FL) | Peak or near-peak activity. Hummingbirds gathering for Gulf crossing. |
| Southern states | Steady traffic of southbound migrants. |
What you should do:
- Northern areas: You can begin reducing feeder maintenance, but do not remove feeders entirely yet
- Gulf Coast and southern areas: Keep feeders up and active — birds are fueling for the Gulf crossing
November: The "Two-Week Rule"
By November, most Ruby-throated Hummingbirds have left the continental United States. The remaining birds are primarily in southern Texas and Florida, making the final Gulf crossing.
General rule: Take your feeder down when you have not seen a hummingbird for two consecutive weeks.
This two-week window ensures that any late migrants — including occasional western vagrants like Rufous Hummingbirds that show up unexpectedly on the East Coast — have a chance to find your feeder.
| Region | Typical Feeder Takedown Window |
|---|---|
| Northern US (ME, MN, WI, MT, etc.) | Mid-October to early November |
| Mid-Atlantic & Midwest | Late October to mid-November |
| Gulf Coast | Mid-November to early December |
| Southernmost Texas & Florida | Late November to December (or never — some species remain year-round) |
Photo: Michelle Lynn Reynolds, CC BY-SA 3.0 — Male Ruby-throated Hummingbird displaying territorial behavior
What Other Birds Need During Fall Migration?
Hummingbirds get a lot of attention — and they deserve it — but they are not the only birds preparing for an epic journey. Many common backyard birds also migrate in fall and benefit from feeders along the way.
Warblers
Species like Yellow Warblers, Palm Warblers, and Common Yellowthroats pass through backyards across the eastern US in September and October. Most warblers eat insects, not seeds — but they will visit feeders offering mealworms.
Eastern Towhees and Sparrows
Ground-feeding birds that use feeders as a supplementary food source during migration and as they prepare for winter. They prefer scattered seed on the ground beneath feeders.
American Goldfinches
Goldfinches undergo a partial fall molt and may shift their diet from insects to seeds during this period. They are attracted to Nyjer seed and sunflower hearts at feeders.
White-Breasted Nuthatches and Chickadees
These year-round residents begin caching food in fall — hiding seeds in tree bark and crevices for winter. They use feeders heavily as a source for seeds to store.
Blue Jays
Blue Jays are famous for their caching behavior. A single Blue Jay can hide thousands of acorns and seeds in a season. They visit feeders for peanuts and sunflower seeds, often carrying multiple items away to stash.
For all of these species, a clean, well-stocked feeder in September and October can provide critical energy during migration or winter preparation.
Photo: John Brighenti, CC BY 2.0 — Blue Jays are among the many backyard birds that benefit from feeders during fall
Best Foods for Fall Migrating Birds
Different birds need different things during fall. Here is a quick guide:
| Bird Group | Best Food to Offer | Why It Helps |
|---|---|---|
| Hummingbirds | Nectar (4 parts water + 1 part white sugar) | Quick sugar energy for flight; no honey, no artificial sweeteners, no red dye |
| Warblers & Insect-eaters | Mealworms (live or dried) | Protein for feather growth and migration fuel |
| Finches | Nyjer seed, sunflower hearts | High oil content for energy; supports molt |
| Cardinals, Towhees, Sparrows | Black oil sunflower seeds, white proso millet | Calorie-dense; good for ground-feeding and caching species |
| Blue Jays, Nuthatches, Woodpeckers | Peanuts (shelled or in shell), suet | High fat and protein; supports caching behavior |
| All birds | Fresh water (birdbath or dripper) | Hydration, bathing, cooling — often more important than food |
A note on nectar: The standard recipe for hummingbird nectar is 4 parts water to 1 part white granulated sugar. Boil the water, dissolve the sugar, and let it cool. Do not add honey (can cause fatal fungal infections), artificial sweeteners (provide no energy), or red food coloring (unnecessary and potentially harmful). The feeder's red color is attraction enough.
How to Prepare Your Backyard for Fall Birds
Beyond food, there are several things you can do to make your yard more welcoming during migration season.
Keep Feeders Clean
Fall temperatures — especially in September and early October — can still be warm enough for nectar to ferment and seed to mold. Clean:
- Hummingbird feeders: Every 3-5 days in warm weather, every 5-7 days in cooler weather
- Seed feeders: Every 2 weeks, or sooner if seed looks damp or clumpy
Use a solution of one part white vinegar to nine parts water, or a weak bleach solution (one part bleach to nine parts water), and rinse thoroughly.
Provide Fresh Water
Many birds prioritize water over food during migration. A clean, shallow birdbath — especially one with moving water (a dripper or mister) — can attract species that would never visit a seed feeder.
Change water daily to prevent mosquito breeding and bacterial growth.
Plant Native Shrubs and Leave Some Seed Heads
Native plants provide:
- Natural food sources (berries, seeds, insects)
- Cover from predators
- Resting spots for tired migrants
Resist the urge to "tidy up" your garden completely in fall. Seed heads from coneflowers, sunflowers, and native grasses provide natural food. Fallen leaves provide ground-level insect habitat for foraging birds.
Reduce Window Collisions
Migration is the peak season for bird-window strikes — an estimated 600 million birds die from window collisions annually in the US (Loss, Will & Marra, 2014). You can help:
- Move feeders closer to windows (within 3 feet — birds cannot build up dangerous speed) or farther away (15+ feet — birds have room to avoid the glass)
- Apply window decals or UV-reflective tape
-
Close blinds or curtains during peak migration hours (early morning)
Photo: Melissa McMasters, CC BY 2.0 — A late-season hummingbird visiting a feeder in October
Capture Fall Migration Moments With a Smart Bird Feeder Camera
Fall is one of the most exciting times of year for backyard bird watching. You may see:
- A hummingbird making a quick refueling stop before the Gulf crossing
- Warblers passing through that you never see the rest of the year
- Blue Jays caching peanuts for winter
- A young fledgling visiting a feeder for the first time
- Species you have never seen in your yard before — migration brings surprises
A smart bird feeder camera captures these moments automatically — recording visits, identifying species, and giving you a detailed log of the birds moving through your yard. Instead of wondering what passed through while you were at work, you can review the footage later and discover who visited.
FAQ
Should I remove my hummingbird feeder in September?
No. September is one of the busiest months for hummingbird migration across much of North America. Removing your feeder during peak migration removes a valuable refueling stop for birds that may be traveling hundreds or thousands of miles.
Will leaving my hummingbird feeder up stop hummingbirds from migrating?
No. Hummingbird migration is triggered by changing daylight and hormonal signals, not by feeder availability. A hummingbird that is ready to migrate will leave whether your feeder is full or empty. Leaving your feeder up does not delay or prevent migration.
What month do hummingbirds leave the United States?
It depends on your region. Ruby-throated Hummingbirds begin leaving northern areas in late August, with peak migration in September. Gulf Coast states see the heaviest traffic through October, with some birds passing through into November. The general rule: keep your feeder up until you have not seen a hummingbird for two consecutive weeks.
When should I take down other bird feeders?
Most seed feeders can stay up year-round. Many common backyard birds — cardinals, chickadees, nuthatches, woodpeckers, Blue Jays — remain in their territories through winter and rely on feeders as a supplemental food source. There is no reason to take them down in fall.
How often should I change hummingbird nectar in fall?
As temperatures cool, nectar lasts slightly longer. In warm September weather, change every 3-5 days. By October and November in cooler areas, every 5-7 days is usually sufficient. Discard any nectar that looks cloudy, has mold, or smells fermented.
Do late-season hummingbirds need my feeder?
Yes — potentially more than early-season birds. Late migrants are often juveniles or birds from the farthest northern breeding grounds. They are traveling later because they started later, and they may be running low on energy reserves. Every feeder along the route matters.
What else can I do to help migrating birds?
Keep feeders clean, provide fresh water (especially with moving water), plant native species, reduce window collisions with decals or tape, and avoid using pesticides that reduce the insect population migrating birds depend on.
