Hummingbirds in Winter
North American birders can still catch a glimpse of Hummingbirds in winter with these birding and migration tips.
Could any birds say summer more clearly than hummingbirds? Dancing before flowers to sip nectar, flashing and glittering in the light, they seem like tiny sunbeams come to life.
The very idea of winter hummingbirds sounds almost like a contradiction. But some hummingbirds do spend the winter in North America, and in recent years their numbers and range have been increasing.
Year-Round With Anna
Of course, winter isn’t a harsh season everywhere. In coastal California, where the weather is moderate year-round, Anna’s hummingbirds have always been permanent residents. Historically, they were common from Baja north to the San Francisco Bay region.
Around the 1930s, however, they began to spread. By the 1960s they were expanding eastward and beginning to nest in Arizona. At the same time, they pushed north through coastal Oregon and Washington and into southwestern British Columbia. Today you can see male Anna’s flashing their rose-red crowns and singing their scratchy songs in Vancouver, even on cold days in January.
What made it possible for these hummingbirds to expand their range so dramatically? The short answer is that gardeners did.
With well-watered parks and yards boasting hardy plants blooming in every season, we created a landscape that would support more Anna’s hummingbirds year-round than most of their natural habitats. Add in a generous number of sugar-water feeders, and you have a hummer haven for all seasons.
Taking a Detour
A similar story has played out in the Eastern states. But the plot line there is more complicated and involves more different players.
Most kinds of hummingbirds in the U.S. live in the West, especially the Southwest. Originally, the only hummers east of the Great Plains were the familiar little ruby-throats. They were summer birds from the Gulf Coast to southern Canada, but almost all went to southern Mexico or Central America for the winter, with only a handful staying through the season in Florida.
But recent decades have seen a virtual explosion in the numbers of Western hummingbirds wandering eastward.
Leading the charge has been the rufous hummingbird. This copper-colored sprite is among the most numerous Western hummers, spending early summer in Northwestern forests, from Oregon and Montana to the edge of Alaska. In late summer and early fall, most of the population migrates south through mountain meadows of the Rockies, heading for a wintering range in Mexico. But every fall, a few rufous hummingbirds stray east out of the Rockies, winding up in the Southeastern U.S.
In centuries past, such strays probably would not have survived the winter—not unless they corrected their course and headed for Mexico. There simply weren’t enough wildflowers to sustain them through the season. But gardeners have changed that equation, too.
Over the last century, legions of plant lovers throughout the South have developed year-round flower beds. In the process, they have unwittingly changed the landscape to support winter hummingbirds.
Rufous hummingbirds have now spread through Louisiana, Mississippi, Alabama, Georgia and Florida, with smaller numbers north along the Atlantic Coast to Virginia and beyond. And they seem to have brought their friends along.
The calliope hummingbird, America’s tiniest bird at just over 3 inches, is now a regular in winter in the Southeastern states. So are the broad-tailed hummingbird, another bird from the Rockies, and the black-chinned hummingbird, the Western counterpart to the ruby-throat. During some recent seasons, 10 or more different species of hummers have spent the winter in the Gulf states.
Many people in the South now work at developing winter hummingbird gardens, putting up sugar-water feeders and planting any kind of red, tubular flower that will bloom when it’s cool.
Knowing that hummers will pause to investigate anything in their favorite color, one Louisiana birder even painted her house red! Any hummingbird that flew within a mile of that place probably detoured to check it out.
Most people wouldn’t go as far as that Louisiana woman. But if you live in a climate where it’s possible to keep some flowers blooming during the winter, why not try planting some hardy nectar sources for hummers? You just might make the joyful discovery that hummingbirds can be winter birds after all.
History of Vagrant Hummers
1950s: A few rufous show up in fall in Louisiana and stay through winter.
1970s: A few more hummingbirds start showing up and staying.
1990s: Dozens of hummingbirds are staying in Louisiana and beyond.
2012: Hundreds of vagrant hummingbirds will likely winter all over the Southeast, including rufous, calliope and others.