Ruby-throated Hummingbirds typically start showing up in Alabama in mid-to-late March, with numbers building through April and peaking during the first half of the month as waves of migrants push north from the Gulf Coast. Fall migration brings a second, often larger peak from late August through September, when southbound birds funnel through the state on their way to Central America. Alabama’s position along the northern Gulf of Mexico makes it both a launching pad and a landing strip for one of the most physically demanding journeys in the bird world, and that geography shapes the timing in ways worth understanding if you want to make the most of hummingbird season.
Spring Arrival and the March-Through-April Wave
The earliest Ruby-throated Hummingbirds reach the Alabama Gulf Coast in the first or second week of March, sometimes even the last days of February in unusually warm years. These first scouts are almost always adult males, which migrate ahead of females by a week or two. Coastal counties like Baldwin and Mobile tend to see birds before the rest of the state simply because many of these hummingbirds have just completed a nonstop flight across the Gulf of Mexico and make landfall on the nearest stretch of shoreline they can find.
By the end of March, hummingbirds are typically being reported across the southern half of the state. Central Alabama, including the Birmingham metro area, usually sees consistent arrivals in early-to-mid April. The northern tier of the state, from Huntsville to the Tennessee Valley, fills in during the second and third weeks of April. The whole spring push spans roughly six weeks from first sighting to the point when breeding territories are established statewide. Peak feeder activity during spring migration tends to fall between late March and mid-April in the southern half of the state and mid-to-late April in the northern half.
Alabama’s Only Breeding Hummingbird
The Ruby-throated Hummingbird is the only hummingbird species that breeds in eastern North America, and Alabama sits squarely within its core range.1Birds of the World (Cornell Lab of Ornithology). Ruby-throated Hummingbird (Archilochus colubris) – Section: Introduction Once males arrive and claim territories in spring, they perform dramatic courtship displays, flying in wide U-shaped arcs in front of perched females. Nesting begins in April and can continue into July, with females doing all of the nest building, incubating, and chick rearing on their own. A female typically raises one or two broods per season, with each clutch containing two eggs about the size of navy beans.
Through the summer months, from May into early August, hummingbird activity at feeders can actually dip compared to migration peaks. That drop-off catches some people off guard. It happens because breeding females are spending more time on or near the nest and because territorial males defend a patch of flowers or a single feeder aggressively, chasing off rivals. The birds are still around, but they are spread out across nesting habitat rather than concentrated at feeding stations.
Fall Migration and the September Surge
Fall migration is the event most Alabama birders look forward to, and for good reason: southbound numbers tend to be substantially larger than spring numbers. The summer’s crop of young birds roughly doubles the population, and all of those birds need to move south. Adult males begin drifting out of Alabama breeding territories as early as late July, and adult females follow in August. Juvenile birds, which hatched that summer, make up the bulk of the September wave.
Peak fall migration through Alabama generally runs from late August through the third week of September. Feeders in the southern half of the state can be swarmed during this window, with some homeowners reporting dozens of birds at once. Coastal Alabama sees especially heavy traffic because birds are staging there, fattening up before attempting the Gulf crossing. By mid-October, most Ruby-throated Hummingbirds have moved through, though stragglers are regularly reported into November and occasionally even later.
A common piece of advice you will hear is to leave your feeders up until at least two weeks after your last sighting. This is good guidance. Late-migrating birds, including juveniles making their first-ever southbound trip, depend on finding fuel along the way. There is no truth to the old myth that keeping feeders up will prevent hummingbirds from migrating. The urge to migrate is driven by changing day length, not food availability, so a well-stocked feeder will not trap a bird that needs to leave.
The Gulf Crossing
What makes Alabama’s role in hummingbird migration so dramatic is the Gulf of Mexico. Many Ruby-throated Hummingbirds fly nonstop across more than 800 kilometers of open water during both spring and fall migration, a round-trip distance exceeding 1,600 kilometers over the course of a year.2Birds of the World (Cornell Lab of Ornithology). Ruby-throated Hummingbird (Archilochus colubris) – Section: Introduction An adult male weighs only about 3 grams and a female about 3.5 grams, making them among the smallest long-distance migrants on the planet. To fuel the crossing, individuals often double their body mass by gorging on nectar and insects in the days and weeks before departure.2Birds of the World (Cornell Lab of Ornithology). Ruby-throated Hummingbird (Archilochus colubris) – Section: Introduction
Not all birds take the trans-Gulf route. Some follow the coastline around the Gulf through Texas and Mexico, a longer but less risky path. Researchers still do not know what proportion of the population uses each route, and it likely varies by individual condition and weather.2Birds of the World (Cornell Lab of Ornithology). Ruby-throated Hummingbird (Archilochus colubris) – Section: Introduction What this means for Alabama is that the state serves as a critical staging area in fall and a recovery zone in spring. Coastal gardens, parks, and wildlife refuges along Mobile Bay and the Gulf Shores corridor can be exceptionally productive places to watch hummingbirds during migration windows.
Surprise Winter Visitors
One of the more surprising findings in recent decades is that hummingbirds do not entirely vanish from Alabama in winter. A ten-year banding study covering November 2008 through March 2018 documented 11 different hummingbird species overwintering in southern Alabama and the Florida panhandle. Of 1,870 individuals captured and banded, nearly half were Rufous Hummingbirds, a western species that has increasingly turned up in the Southeast during winter. Ruby-throated Hummingbirds made up about 31 percent, and Black-chinned Hummingbirds accounted for roughly 12 percent.3The Wilson Journal of Ornithology. A second decade of overwintering hummingbirds in Florida and Alabama
The remaining species included Buff-bellied, Calliope, Allen’s, Broad-tailed, Broad-billed, Anna’s, Costa’s, and even a White-eared Hummingbird, a species whose normal range barely crosses the U.S.-Mexico border.3The Wilson Journal of Ornithology. A second decade of overwintering hummingbirds in Florida and Alabama Site fidelity was high: 299 individual hummingbirds of five species returned to the same wintering locations at least once.4The Wilson Journal of Ornithology. A second decade of overwintering hummingbirds in Florida and Alabama In other words, some of these winter birds are not lost or confused. They are deliberately choosing Alabama as their wintering ground and coming back year after year.
If you keep a feeder up through the winter in southern Alabama, especially along the coast, there is a real chance of attracting one of these western vagrants. Rufous Hummingbirds are hardy enough to tolerate freezing nights by entering torpor, a state of dramatically lowered metabolism and body temperature that lets them conserve energy overnight. For birders interested in seeing species they would normally have to travel to Arizona or California to find, an Alabama winter feeder can be a genuine hotspot.
How Climate Change Is Shifting the Calendar
If it feels like hummingbirds are arriving earlier in spring and lingering later in fall than they used to, the data backs that up. An analysis comparing historical records to recent observations found that Ruby-throated Hummingbirds are now arriving in spring roughly 14 to 28 days earlier than they did historically, and departing in fall about 17 to 34 days later, depending on latitude.5bioRxiv. Advancement of spring arrival and delayed autumn departure in Ruby-throated Hummingbird (Archilochus colubris) migration phenology over more than a century The smallest shift in departure dates was observed around the 30th parallel north, which runs right through the southern portion of Alabama.5bioRxiv. Advancement of spring arrival and delayed autumn departure in Ruby-throated Hummingbird (Archilochus colubris) migration phenology over more than a century
The practical implication is straightforward: the old rules of thumb for when to put up and take down feeders are getting outdated. Twenty years ago, “mid-March” was considered safe for hanging feeders in the Alabama Gulf region. Today, late February is not unreasonable for the southern counties. On the fall end, feeders that used to come down in October might now be visited through November. The pace of migration itself has not changed much; birds are flying at similar speeds. It is the calendar start and end dates that have drifted, extending the total window during which hummingbirds are present in the state.
Practical Feeder and Garden Timing
Putting all of the migration timing together, here is a practical feeder calendar for different parts of Alabama:
- Southern Alabama (Mobile, Baldwin, and coastal counties): Hang feeders by late February to early March. Peak spring activity runs from mid-March through mid-April. Fall peak hits late August through late September. Consider leaving at least one feeder up all winter for potential Rufous or other western species.
- Central Alabama (Montgomery, Birmingham, Tuscaloosa): Hang feeders by mid-March. Peak spring activity falls in April. Fall peak is late August through mid-September. Safe to take down feeders by late October if no birds have visited for two weeks.
- Northern Alabama (Huntsville, Decatur, Florence): Hang feeders by late March to early April. Peak spring activity is mid-to-late April. Fall peak is mid-August through early September. Most birds are gone by mid-October.
The sugar-water ratio that works best is four parts water to one part plain white sugar, mixed until dissolved. No red dye, no honey, no artificial sweeteners. Change the solution every three to five days in moderate weather and every other day when temperatures climb above 90°F, which is most of an Alabama summer. Fermented or cloudy nectar can sicken birds.
Native plants are even more effective than feeders over the long run. Trumpet creeper, coral honeysuckle, cardinal flower, and bee balm are all native to Alabama and bloom at different times through the season, providing a rolling buffet from spring through fall. A yard with both feeders and native flowering plants will see more hummingbird activity than one with feeders alone, because the birds also rely heavily on the tiny insects they catch around flowers for protein.
Tracking Hummingbird Arrivals With Citizen Science
If you want to know exactly when hummingbirds are reaching your specific county, citizen-science platforms are the best tool available. The eBird database, run by the Cornell Lab of Ornithology, has accumulated bird observation data since 1980 and now serves as the largest repository of bird distribution information for North America.6MDPI / Diversity. Macroecological Analysis of Bird Migration Routes in North America Using eBird Data: Beta Diversity Perspective You can pull up a species map for Ruby-throated Hummingbird filtered to any week of the year and watch the green dots sweep north across the Gulf states in real time during spring.
Several dedicated hummingbird migration maps also exist, where backyard birders report their first spring sighting or last fall sighting. These crowdsourced maps are not peer-reviewed, but they are surprisingly useful for gauging whether birds have reached your area yet. Checking one of these maps in early March and again in early September gives you a good sense of the current year’s migration wave and whether it is running early, late, or on schedule relative to previous years.
Alabama sits along the eastern flyway, and Ruby-throated Hummingbirds moving through the state are part of a migratory stream that extends from the Yucatán Peninsula to southern Canada. Because Alabama spans about five degrees of latitude from the Gulf to the Tennessee border, there can easily be a three-to-four-week gap between when the first birds hit the coast and when they reach the northern counties. Keeping an eye on real-time sighting data is the most reliable way to know when your own neighborhood’s hummingbird season has begun.
Why the Rufous Hummingbird Matters in Alabama
The Rufous Hummingbird deserves special mention because its presence in Alabama has gone from ornithological curiosity to annual expectation. Historically, this species bred in the Pacific Northwest and migrated down the West Coast and through the Rockies. Starting in the latter decades of the twentieth century, growing numbers began showing up in the Gulf states during winter. In the banding study covering southern Alabama and the Florida panhandle, Rufous Hummingbirds made up the single largest share of overwintering individuals, outnumbering even the Ruby-throated.3The Wilson Journal of Ornithology. A second decade of overwintering hummingbirds in Florida and Alabama
Rufous Hummingbirds typically begin appearing in Alabama in October and November, after the bulk of Ruby-throated migration has passed through. They are noticeably feisty, often dominating feeders despite being no larger than a Ruby-throat. Males are distinctive, with coppery-orange plumage over most of their body, while females and immatures are greener and harder to distinguish from other species without close inspection. If you see a hummingbird at your Alabama feeder in December or January, there is a good chance it is a Rufous.
Because these birds are increasingly reliant on backyard feeders during their southeastern winter stays, maintaining a clean feeder through the cold months is a genuine conservation contribution. The Rufous Hummingbird is experiencing population declines across its western breeding range, and the southeastern wintering population represents a growing and poorly understood part of its life cycle. Alabama birders who host these winter visitors and report them through eBird or contact local banding stations are contributing data that helps researchers understand whether this eastward shift is expanding, stable, or connected to broader population trends.